MacDonald Plumbing Supplies MacControl Dual Channel Programmer

MacControl Dual Channel Programmer is a mains powered digital programmer designed to provide flexible time based control of central heating and hot water systems. With independent channels for heating and hot water, it allows installers and homeowners to create schedules suited to their daily routines. The programmer is compatible with gravity fed and fully pumped systems, including S plan and Y plan configurations. Multiple programming options, three ON/OFF periods per channel, holiday mode, frost protection and useful override functions provide precise and convenient control for modern residential heating systems.

MacDonald Plumbing Supplies MacVessel Sealed System Filling Kit

The MacVessel Sealed System Filling Kit provides the essential components required for filling and monitoring sealed central heating systems using expansion vessels from 8 to 80 litres. The kit includes a filling loop with two 15mm compression fittings, a 3 bar safety relief valve and gauge, a 3/4 inch manifold, and a red or blue safety valve cap. Supplied as a convenient kit, it helps installers bring the key components together for efficient system installation and servicing. Suitable for use with a range of sealed heating systems and expansion vessel sizes.

Regin Rapid DigiDial Pressure Checker REGX11

The Regin Rapid DigiDial Pressure Checker REGX11 is a compact and easy-to-use digital pressure testing tool designed for quickly checking water pressure in domestic and commercial plumbing systems. Featuring a clear digital display and simple operation, it provides fast, accurate pressure readings, making it an essential diagnostic tool for plumbers, heating engineers, and maintenance professionals. Its portable design allows convenient use on-site for routine servicing, fault finding, and system commissioning.

Arctic Hayes SleepSafe Carbon Monoxide Alarm/Detector COA10

The Arctic Hayes SleepSafe Carbon Monoxide Alarm/Detector COA10 is a dependable, self contained safety device designed to protect occupants from the dangers of carbon monoxide exposure. Suitable for homes, caravans, and boats, this easy to use alarm features a sealed-for-life 10 year battery and provides continuous monitoring without the need for wiring or battery replacement. Certified to EN50291-1:2010 and EN50291-2:2010 standards, it meets essential safety requirements and is ideal for domestic installations, including social and council housing applications.

BritTherm Replacement Pump Head H3 Series H3 25/8 (661996508)

The BritTherm H3 25/8 Replacement Pump Head is a high-efficiency, universal electric motor designed for use in modern combination gas boilers requiring anti-clockwise rotor rotation. Built for maximum compatibility and efficiency, this pump head is remotely controlled via low-voltage PWM signals from the boiler’s circuit board. Fully compatible with smart home systems, thermostats, and renewable energy setups, the H3 25/8 offers 11 automatic programmes and 3 constant-speed settings. It also includes night-time power reduction and advanced protection against electrical and thermal faults, making it a reliable upgrade or replacement solution. The BritTherm H3 25/8 Pump Head is part of the versatile H3 Series, offering reliable and energy-efficient performance for modern gas boilers. Designed to rotate anti-clockwise, this replacement pump head integrates seamlessly into boiler systems using universal PWM (Pulse Width Modulation) technology. It accepts low-voltage control signals via a dedicated cable from the boiler’s electronic board, enabling smooth and efficient remote rotor speed management. Ideal for smart heating systems, the H3 25/8 is compatible with major thermostat brands such as Siemens and Honeywell. It supports 11 automatic operation modes and 3 traditional fixed-speed settings, suiting a variety of system demands. The built-in Night Power Reduction function lowers energy consumption to just 5 watts without compromising heating quality. With integrated electrical and thermal protection systems, this pump head ensures long-lasting, reliable operation and safeguards against external damage.   Features & Benefits: ✅ Universal compatibility with modern gas boilers ✅ Anti-clockwise rotor rotation for accurate system integration ✅ Remotely controlled via PWM low-voltage signal ✅ Compatible with smart thermostats and controllers (e.g., Siemens, Honeywell) ✅ Ideal for underfloor heating, solar systems, and heat pumps ✅ 11 automatic operation programmes + 3 fixed-speed modes ✅ Built-in Night Power Reduction – consumes as little as 5W ✅ Energy-efficient without compromising heating performance ✅ Electrical and thermal protection ensures pump longevity ✅ Suitable for smart home and renewable energy systems ✅ Easy upgrade or replacement option for faulty motors

BritTherm Replacement Pump Head H4 Series H4 25/4 (661996602)

The BritTherm H4 25/4 Replacement Pump Head is a universal electric motor designed for repair and replacement in modern combination gas boilers. Featuring advanced PWM technology for remote rotor speed control, it integrates seamlessly with smart home controllers and diverse heating systems such as underfloor heating, solar, and heat pumps, ensuring efficient and adaptable heating performance. The BritTherm Replacement Pump Head H4 Series H4 25/4 offers reliable and versatile operation for modern domestic heating solutions. Its universal motor supports clockwise rotor rotation and is controlled remotely via PWM (Pulse Width Modulation) signals from the boiler’s electronic board, connected through a special control cable. Thanks to the built-in PWM function in the motor processor, the H4 Series motors are compatible with a wide range of controllers and thermostats, including Siemens and Honeywell, making them ideal for smart home systems. This flexibility extends to various heating setups such as underfloor heating, solar thermal systems, and heat pumps. Equipped with 11 automatic operation modes, including three constant fixed speeds (“Old School”), the pump head offers precise control tailored to your heating system’s needs. Its Automatic Night Power Reduction function lowers energy consumption to a mere 5 watts without compromising heating quality, contributing significantly to energy savings. Robust electrical and thermal protection mechanisms protect the pump from damage caused by external factors, enhancing durability and reliability.   Features & Benefits: ✅ Universal motor with remote PWM rotor speed control ✅ Compatible with Siemens, Honeywell, and other smart thermostats ✅ Suitable for clockwise rotor rotation in combination boilers ✅ 11 automatic operating programmes, including 3 fixed speeds ✅ Energy-saving night mode reduces power to 5 watts ✅ Ideal for smart homes, underfloor heating, solar, and heat pumps ✅ Built-in electrical and thermal protection for durability ✅ Easy installation with dedicated control cable

BritTherm Replacement Pump Head H4 Series H4 25/6 (661996605)

The BritTherm H4 25/6 Replacement Pump Head is a versatile and energy-efficient clockwise-rotating motor head ideal for combination gas boilers. Designed with built-in PWM (Pulse Width Modulation) functionality, it allows seamless remote control of rotor speed via a low-voltage signal from the boiler’s electronic board. Compatible with leading thermostat brands such as Siemens and Honeywell, the H4 25/6 is a dependable solution for modern heating systems including underfloor heating, solar installations, and heat pumps. Optimise your central heating system with the BritTherm H4 25/6, a reliable and easy-to-install replacement pump head built for clockwise rotor operation. This advanced motor uses PWM technology for remote speed adjustment and integrates directly with your boiler’s controller for smart, efficient operation. The H4 25/6 is equipped with 11 automatic operating programmes and 3 constant-speed modes, giving it the flexibility to handle a variety of domestic heating requirements. Its energy-saving night mode reduces consumption to just 5 watts without sacrificing performance. Built-in thermal and electrical protection ensure long-term reliability, making this unit ideal for any homeowner or engineer seeking a robust, energy-conscious upgrade.   Features & Benefits: ✅ Clockwise rotation for compatibility with a wide range of boilers ✅ Integrated PWM for smart remote speed control ✅ Compatible with Siemens, Honeywell, and other thermostat systems ✅ Suitable for smart home, solar, and heat pump systems ✅ 11 automatic operation programmes ✅ 3 constant “Old School” speed settings ✅ Night Power Reduction Function (down to 5W) ✅ Built-in protection against electrical and thermal faults ✅ Easy to retrofit and install ✅ Boosts system efficiency and reduces energy bills ✅ Designed for modern heating system upgrades

BritTherm Replacement Pump Head H4 Series H4 25/8 (661996608)

The BritTherm H4 25/8 Replacement Pump Head is designed for modern combination gas boilers requiring clockwise rotor rotation. Featuring built-in PWM technology, this motor allows precise remote control of rotor speed via a low-voltage signal from the boiler’s electronic board. Compatible with a variety of controllers and thermostats such as Siemens and Honeywell, it is ideal for integration into smart homes, underfloor heating, solar thermal, and heat pump systems. Enhance your heating system with the BritTherm H4 25/8, a universal electric motor pump head designed for clockwise rotation in combination boilers. The motor’s integrated PWM processor facilitates remote speed control through the boiler’s electronic system, enabling smooth and efficient operation tailored to your home’s needs. This pump head supports 11 automatic work programmes, including three constant fixed speeds for traditional setups. Its Automatic Night Power Reduction Function lowers energy consumption to just 5 watts during low-demand periods, contributing significantly to energy savings without compromising heating performance. Robust electrical and thermal protection systems safeguard the pump against faults caused by external factors unrelated to its operation, ensuring reliability and long service life. This pump is perfect for heating engineers and homeowners aiming to upgrade or maintain efficient heating systems.   Features & Benefits: ✅ Clockwise rotor design for wide boiler compatibility ✅ Built-in PWM for seamless remote speed control ✅ Compatible with Siemens, Honeywell, and other thermostats ✅ Suitable for smart home, underfloor heating, solar, and heat pump systems ✅ 11 automatic operating programmes plus 3 fixed speed modes ✅ Automatic Night Power Reduction cuts energy use to 5 watts ✅ Electrical and thermal protection for enhanced durability ✅ Easy retrofit replacement for modern combination boilers ✅ Improves heating system efficiency and reduces running costs

BritTherm Automatic Сirculator Pump P3 Series P3 15/4-130 (661995501)

The BritTherm P3 15/4-130 circulator pump is designed for versatile domestic heating systems, featuring nine intelligent automatic operation modes to deliver optimal comfort and energy efficiency. Its compact size and accessible control panel make it ideal for installation even in confined or concealed spaces. The BritTherm Automatic Circulator Pump P3 15/4-130 offers advanced adaptability for modern domestic heating systems. With nine automatic operating modes, this pump intelligently adjusts to the specific demands of your system, ensuring efficient and consistent performance. The pump’s AUTO mode simplifies operation by selecting the best power setting for around 80% of heating systems with a single button press. It includes two constant pressure modes (CP1 and CP2) that maintain steady pressure regardless of flow rate, and two proportional pressure modes (PP1 and PP2) that adapt the pump’s output based on pressure changes proportional to flow rate. For manual control, the pump features three fixed speeds, allowing users to select the desired power output. An automatic night power reduction function reduces energy consumption to a mere 5 watts without affecting the heating quality, saving energy during low demand periods. The pump is also equipped with electrical and thermal protection systems to safeguard it from external damage unrelated to normal operation, enhancing durability and reliability.   Features & Benefits: ✅ Compact 15mm size for easy fitment in tight spaces ✅ Nine automatic operation modes for tailored performance ✅ AUTO mode for simple intelligent control ✅ Two constant pressure modes (CP1 & CP2) for pressure stability ✅ Two proportional pressure modes (PP1 & PP2) for adaptive flow response ✅ Three fixed speeds for manual control ✅ Night mode reduces power to 5 watts for energy efficiency ✅ Electrical and thermal protection for long-lasting durability ✅ Suitable for all domestic heating systems

BritTherm Automatic Сirculator Pump P3 Series P3 25/4-130 (661995503)

The BritTherm P3 25/4-130 circulator pump offers nine advanced automatic operation modes designed to optimise performance and energy efficiency in domestic heating systems. Its compact design and convenient control panel positioning allow for quick installation, even in concealed or limited spaces. The BritTherm Automatic Circulator Pump P3 Series P3 25/4-130 is engineered to provide adaptive and efficient heating system circulation. With nine automatic operating modes, the pump intelligently adjusts to the system’s needs to deliver optimal comfort while reducing energy consumption. The AUTO mode activates with a single button press, tailoring the pump’s output to suit approximately 80% of domestic heating systems. Two constant pressure modes (CP1 and CP2) ensure pressure stability regardless of flow rate, while two proportional pressure modes (PP1 and PP2) dynamically adjust the pump’s performance according to pressure differences proportional to flow rate. Users can also choose from three fixed speeds, offering full manual control over the pump’s power range. Additionally, the pump features an automatic night power reduction function that lowers energy usage to just 5 watts during low demand periods, without sacrificing heating quality. Robust electrical and thermal protection systems safeguard the pump against damage from external factors unrelated to normal operation, ensuring long-term reliability.   Features & Benefits: ✅ Suitable for domestic heating systems with 25mm pipe connections ✅ Nine automatic operation modes for tailored system performance ✅ AUTO mode for simple intelligent control ✅ Two constant pressure modes (CP1 & CP2) for steady pressure ✅ Two proportional pressure modes (PP1 & PP2) for flow-responsive operation ✅ Three fixed speeds for manual power adjustment ✅ Night mode reduces power consumption to 5 watts ✅ Electrical and thermal protection for enhanced durability ✅ Compact design for easy installation in confined spaces

BritTherm Automatic Сirculator Pump P3 Series P3 25/4-180 (661995503)

The BritTherm P3 25/4-180 circulator pump is designed to deliver exceptional heating system performance with nine automatic operation modes. Its compact design and accessible control panel make installation simple, even in confined spaces, while its advanced modes ensure energy-efficient and reliable operation for any domestic heating system. The BritTherm Automatic Circulator Pump P3 Series P3 25/4-180 offers advanced functionality tailored to domestic heating needs. With nine built-in automatic modes, this pump adjusts intelligently to the system’s requirements, balancing comfort and energy savings. The pump’s AUTO mode activates with a single button press, optimising operation for the majority of heating systems. It features two constant pressure modes (CP1 and CP2), which maintain steady pressure regardless of flow changes, and two proportional pressure modes (PP1 and PP2), which respond dynamically to pressure fluctuations in proportion to flow rate. For manual control, three fixed speeds can be selected, allowing full range use of the pump’s power. The automatic night power reduction function cuts energy consumption to just 5 watts during off-peak periods, ensuring efficient operation without compromising heating quality. Electrical and thermal protection systems safeguard the pump from damage caused by external factors, enhancing its durability and reliability.   Features & Benefits: ✅ Compatible with 25mm domestic heating systems ✅ Nine automatic operation modes for adaptable performance ✅ Easy-to-use AUTO mode for intelligent control ✅ Two constant pressure modes (CP1 & CP2) for consistent pressure ✅ Two proportional pressure modes (PP1 & PP2) for responsive adjustment ✅ Three fixed speeds for manual power selection ✅ Night mode reduces power use to 5 watts ✅ Electrical and thermal protection for long-lasting reliability ✅ Compact design with control panel suited for concealed installation

BritTherm Automatic Сirculator Pump P2 Series P2 25/10-130 (661995419)

The BritTherm P2 25/10-130 Circulator Pump is engineered for efficient heating system circulation, featuring a 25mm connection and a 10-metre head for enhanced flow and pressure. Equipped with nine automatic operating modes, including AUTO, constant and proportional pressure settings, plus three manual fixed speeds, this pump adapts intelligently to varying heating demands. Its Night Mode reduces power use to just 5 watts during off-peak hours, helping to lower energy costs without compromising heating performance. Built-in electrical and thermal protections safeguard against damage, ensuring reliable long-term operation. The BritTherm P2 25/10-130 Circulator Pump offers reliable and energy-efficient performance tailored to modern heating systems. With its 25mm pipe connections and a 130mm body length, it delivers up to 10 metres of head pressure, ideal for medium-sized heating circuits requiring consistent flow and pressure. Featuring nine automatic operation modes, the pump adjusts intelligently to system requirements. The simple AUTO Mode activates with one button press and suits approximately 80% of heating systems, easing installation and use. Two constant pressure modes (CP1 and CP2) maintain steady pressure regardless of flow changes, while two proportional pressure modes (PP1 and PP2) dynamically adapt pump speed in response to pressure variations. For users preferring manual control, three fixed speed options are available. The innovative Night Operating Mode reduces energy consumption to just 5 watts during low-demand periods, maximising energy savings while maintaining comfort. Electrical and thermal protection systems provide an extra layer of safety by preventing breakdowns caused by external factors unrelated to the pump’s operation. This pump is an excellent choice for domestic and commercial heating systems, delivering comfort, efficiency, and durability.   Features & Benefits: ✅ 25mm connection size for versatile heating system compatibility ✅ 10m head supports medium-sized heating circuits ✅ Easy AUTO Mode for quick setup and operation ✅ Constant pressure modes (CP1, CP2) ensure stable system pressure ✅ Proportional pressure modes (PP1, PP2) optimise pump performance dynamically ✅ Three fixed speed options for manual control ✅ Energy-efficient Night Mode reduces consumption to 5W ✅ Electrical and thermal protection enhances reliability ✅ Suitable for residential and commercial heating applications

BritTherm Automatic Сirculator Pump P2 Series P2 25/12-130 (661995421)

The BritTherm P2 25/12-130 Circulator Pump is a high-performance 25mm pump featuring a compact 130mm body and an impressive 12-metre head, ideal for demanding heating systems. With nine built-in operation modes—including AUTO, constant and proportional pressure, fixed speeds, and energy-saving Night Mode—this intelligent pump adapts automatically to your system's requirements. It also benefits from advanced electrical and thermal protection, offering long-term reliability and peace of mind for both installers and end-users. Engineered for superior control and adaptability, the BritTherm P2 25/12-130 Circulator Pump delivers outstanding performance for medium to high-pressure heating systems. Its 25mm connection size and 130mm body length make it a compact yet powerful option, capable of delivering up to 12 metres of head pressure—making it ideal for multi-storey residential or complex zoned systems. This model includes nine intuitive operating modes that intelligently adjust the pump’s performance. The AUTO Mode is activated with a single button press and is compatible with 80% of existing systems, making installation and commissioning hassle-free. Two Constant Pressure Modes (CP1 and CP2) keep system pressure steady regardless of demand, while two Proportional Pressure Modes (PP1 and PP2) adjust speed to maintain balanced flow and pressure. If preferred, three manual fixed-speed settings give users full control over performance output. The Night Operating Mode drops power usage to a mere 5 watts during periods of low demand, significantly reducing energy consumption. To ensure the pump’s longevity, integrated electrical and thermal protection systems guard against damage from external electrical issues or overheating. This pump offers both professional installers and end-users a dependable and versatile solution to suit modern heating system requirements.   Features & Benefits: ✅ 25mm connection size with a compact 130mm body ✅ High-performance 12m head for demanding heating circuits ✅ Nine advanced operation modes including AUTO and Night Mode ✅ Two Constant Pressure Modes for stable system control ✅ Two Proportional Pressure Modes for adaptive pressure regulation ✅ Three fixed speed settings for tailored operation ✅ Night Mode reduces energy usage to just 5W ✅ Built-in electrical and thermal protection for reliability ✅ Easy installation and operation with one-touch setup

BritTherm Automatic Сirculator Pump P1 Series P1 25/5-130 (661995304)

The BritTherm P1 25/5-130 Circulator Pump is a compact yet powerful option for domestic heating systems. Featuring intelligent AUTO mode, three manual speed settings, and a night-time energy-saving function, this 130mm pump combines flexibility with high performance. With robust thermal and electrical protection and a compact 1" connection size, it's ideal for tight installations requiring reliable circulation and optimal efficiency. Designed to meet the demands of modern domestic heating systems, the BritTherm Automatic Circulator Pump P1 25/5-130 delivers efficient and adaptive performance in a compact 130mm body. The smart AUTO mode automatically adjusts output to suit system requirements, enhancing comfort and reducing energy use. For installers seeking manual control, the pump also features three selectable fixed speeds, accessible with a simple button press. During off-peak periods, the automatic night-time reduction function cuts power consumption to as low as 5 watts—saving energy without compromising system performance. Built with electrical and thermal protection as standard, the P1 25/5-130 offers added reliability and peace of mind. It's a practical and intelligent choice for smaller pipework setups, such as 1" systems in homes or small commercial premises.   Features & Benefits: ✅ Compact 130mm body for easy domestic installation ✅ 1" BSP connections for common heating systems ✅ Intelligent AUTO mode adjusts to system demands ✅ Three fixed speeds for flexible manual control ✅ Night-time power reduction down to 5W ✅ Built-in thermal and electrical protection ✅ Quiet and efficient operation ✅ Simple one-button interface

MacDonald Plumbing Supplies MacShock 15mm Water Shock Arrestor - Diaphragm

The MacShock 15mm Water Shock Arrestor - Diaphragm is a highly effective solution for eliminating water hammer and pressure surges in plumbing systems. Its compact size allows for flexible installation in confined spaces, while the internal diaphragm technology efficiently absorbs sudden changes in water flow. This shock arrestor is ideal for use with water meters, non-return valves, and appliances such as dishwashers and washing machines. Fully WRAS approved, it ensures quieter operation and long-term protection for your plumbing network, safeguarding boilers, pipes, and fittings from damage caused by hydraulic shock.

Regin M8 Brass Pressure Test Point REGQ161

The Regin M8 Brass Pressure Test Point (REGQ161) is a high-quality component designed for precise and reliable pressure testing in various applications. Manufactured from durable brass, it ensures a secure and long-lasting connection, making it ideal for professional use in heating and plumbing systems.

MacDonald Plumbing Supplies MacScale 22mm Electrolytic Scale Reducer

The MacScale 22mm Electrolytic Scale Reducer is a reliable and maintenance-free solution for reducing limescale build-up in plumbing systems. Designed for larger 22mm pipework, it provides whole house protection using an electrolytic process that requires no chemicals or power. WRAS approved and easy to install, it helps maintain system efficiency and extend the lifespan of appliances and pipework.

MacDonald Plumbing Supplies MacScale 15mm Electrolytic Scale Reducer

The MacScale 15mm Electrolytic Scale Reducer is an effective, maintenance-free solution designed to reduce limescale build-up in plumbing systems. Suitable for both domestic and commercial use, it provides whole house protection using an electrolytic process that requires no chemicals or power. WRAS approved and easy to install with 15mm compression fittings, it helps extend the life of appliances and pipework.

MacDonald Plumbing Supplies MacPump 3 Speed Domestic Circulating Pump - 25/6-130

The MacPump 3 Speed Domestic Circulating Pump - 25/6-130 is a reliable and energy-efficient solution for circulating water in domestic heating systems. Designed for use in radiator circuits, hot water systems, and underfloor heating, it features a 3-speed manual setting for flexible control of flow rates. With a 6m head and simple plug-and-pump installation, it offers dependable performance and ease of use.

MacDonald Plumbing Supplies MacPump 1½ "A" Rated Circulating Pump

The MacPump 1½" “A” Rated Circulating Pump is a high-efficiency solution designed for domestic heating and hot water systems. Featuring a permanent magnet motor and intelligent differential pressure control, it automatically adjusts performance to suit system demand. With both variable and fixed speed settings, a 6m head, and A-rated energy efficiency, it delivers reliable performance while helping to reduce energy consumption.

Danfoss Motorised Valve HP22B Paddle Type 2 Port 22mm DF087N660900

The Danfoss Motorised Valve HP22B Paddle Type 2 Port 22mm DF087N660900 is a high-performance valve designed for precise flow control in domestic and commercial heating systems. Featuring a paddle type mechanism for reliable shut-off and a robust construction, it ensures efficient operation and long service life. With a high flow rate and compatibility with a range of actuators, it offers flexibility for various heating applications.

Trappex Expansion Vessel Bracket

Securely and precisely connect your expansion vessel to your heating system with the Trappex Expansion Vessel Bracket. Designed for installations with limited space, this bracket ensures reliable support and functionality for expansion vessels ranging from 2 to 25 litres.

Regin Yellow Hi-Viz Silicone Tube (6mm ID) REGU98

Enhance visibility and safety with Regin's Hi-Viz Silicone Tube. This 2-metre length tubing, with a 6mm internal diameter, is designed for use with gas readings in manometers. The vibrant yellow colour ensures better visibility compared to standard tubing. It is suitable for high-temperature applications, with a capacity to withstand temperatures up to 150°C.

MacDonald Plumbing Supplies Universal 240V Synchron Motor

The Universal 240V Synchron Motor is a versatile component suitable for most 2-port and 3-port motorised valves in central heating systems. By replacing just the motor, you can save on costly valve replacements and avoid hiring a plumber. This DIY-friendly motor ensures your central heating system operates efficiently.

Regin 10mm Nut Driver (Flexible Shaft) REGU81

The Regin 10mm Nut Driver (Flexible Shaft) REGU81 is the perfect tool for removing gas test nipples during gas tightness tests. Its flexible shaft and built-in 10mm fixed hex end make it a versatile and essential companion for gas engineers and professionals.

Trappex 22mm Centramag 2 Magnetic Filter

The Trappex Centramag 2 Magnetic Filter (22mm) is an advanced in-line filter designed to protect residential and light commercial heating systems from harmful debris. With a unique nine-separator design and quick-fit installation, it delivers premium performance in a compact form.

MacDonald Plumbing Supplies MacShock ½ Water Shock Arrestor - Diaphragm

The MacShock 1/2" Water Shock Arrestor - Diaphragm is a compact and efficient device designed to absorb pressure surges and prevent water hammer in plumbing systems. It is particularly useful in systems with water meters, non-return devices, and appliances like dishwashers or washing machines. With WRAS approval, this shock arrestor ensures smooth operation, reduces pipe vibrations, and helps protect boilers and other plumbing components from damage caused by sudden changes in water flow.

Regin Danger Do Not Use Sticker/Tag With Engineer Detail Panel (8) REGP26

REGP26 – Danger – Do Not Use Sticker / Tag  

Regin Free-Air Gauge Vernier REGK73

REGK73 - Free-Air Gauge Vernier  

Regin Brass Gas Hob Test Adaptor & 1M Hose - REGU79

Brass adapter for testing cooker inlets for pressure.  

Todays Tools Gas Pressure Test Nipples 1/8" BSP *3 Pack* PTN

Todays Tools Dry Pressure Test Kit 0-4 Bar DRTKA

Todays Tools 8mm x 1.2mtr Continuity Earthing Bond CB

The Todays Tools 8mm x 1.2m Continuity Earthing Bond CB is a professional safety tool designed to maintain temporary electrical continuity to earth when disconnecting or reconnecting gas pipework. Featuring a flexible 8mm multi-strand copper cable measuring 1.2 metres in length and heavy-duty spring-loaded crocodile clamps, it provides a secure temporary earth connection, helping engineers work safely during installation and maintenance tasks.

Gledhill SL Plus Indirect 400 EE Open Vented PLUIN400OV

The indirect range has a high efficiency corrugated tube coil which is connected to a conventional boiler to heat the cylinder of water. The coil’s corrugated design gives much faster recovery times than can be achieved with plain tube coils. All models have a temperature and pressure relief valve which is factory set at 6 bar and 95 degrees celsius. (Please note all indirect models come with an on-peak back-up immersion but only the 250, 300 and 400 litre models are supplied with an additional off-peak immersion.)

Gledhill SL Plus Indirect 150 EE Open Vented PLUIN150OV

The indirect range has a high efficiency corrugated tube coil which is connected to a conventional boiler to heat the cylinder of water. The coil’s corrugated design gives much faster recovery times than can be achieved with plain tube coils. All models have a temperature and pressure relief valve which is factory set at 6 bar and 95 degrees celsius. (Please note all indirect models come with an on-peak back-up immersion but only the 250, 300 and 400 litre models are supplied with an additional off-peak immersion.)

Gledhill SL Plus Indirect 180 EE Open Vented PLUIN180OV

The indirect range has a high efficiency corrugated tube coil which is connected to a conventional boiler to heat the cylinder of water. The coil’s corrugated design gives much faster recovery times than can be achieved with plain tube coils. All models have a temperature and pressure relief valve which is factory set at 6 bar and 95 degrees celsius. (Please note all indirect models come with an on-peak back-up immersion but only the 250, 300 and 400 litre models are supplied with an additional off-peak immersion.)

Gledhill SL Plus Indirect 210 EE Open Vented PLUIN210OV

The indirect range has a high efficiency corrugated tube coil which is connected to a conventional boiler to heat the cylinder of water. The coil’s corrugated design gives much faster recovery times than can be achieved with plain tube coils. All models have a temperature and pressure relief valve which is factory set at 6 bar and 95 degrees celsius. (Please note all indirect models come with an on-peak back-up immersion but only the 250, 300 and 400 litre models are supplied with an additional off-peak immersion.)

Gledhill SL Plus Indirect 250 EE Open Vented PLUIN250OV

The indirect range has a high efficiency corrugated tube coil which is connected to a conventional boiler to heat the cylinder of water. The coil’s corrugated design gives much faster recovery times than can be achieved with plain tube coils. All models have a temperature and pressure relief valve which is factory set at 6 bar and 95 degrees celsius. (Please note all indirect models come with an on-peak back-up immersion but only the 250, 300 and 400 litre models are supplied with an additional off-peak immersion.)

Gledhill SL Plus Indirect 90 EE Open Vented PLUIN090OV

The indirect range has a high efficiency corrugated tube coil which is connected to a conventional boiler to heat the cylinder of water. The coil’s corrugated design gives much faster recovery times than can be achieved with plain tube coils. All models have a temperature and pressure relief valve which is factory set at 6 bar and 95 degrees celsius. (Please note all indirect models come with an on-peak back-up immersion but only the 250, 300 and 400 litre models are supplied with an additional off-peak immersion.)

Gledhill SL Plus Indirect 120 EE Open Vented PLUIN120OV

The indirect range has a high efficiency corrugated tube coil which is connected to a conventional boiler to heat the cylinder of water. The coil’s corrugated design gives much faster recovery times than can be achieved with plain tube coils. All models have a temperature and pressure relief valve which is factory set at 6 bar and 95 degrees celsius. (Please note all indirect models come with an on-peak back-up immersion but only the 250, 300 and 400 litre models are supplied with an additional off-peak immersion.)

Regin MRT Manometer Rigid Tube REGU03

REGU03 - M.R.T. Manometer Rigid Tube  

Regin MRT Manometer Rigid Tube REGU04

REGU04 - 90 Degree Manometer Rigid Tube  

Regin Electrical Connector with Strain Relief 5 way REGE105

REGE105 - 5 Way Connector  

Regin Gas Tape 33M REGA05

Ideal for marking out gas pipe work  

MacDonald Plumbing Supplies MacChem C100B 500ml Corrosion Inhibitor with Biocide

The MacChem C100B 500ml Corrosion Inhibitor with Biocide is specially formulated to protect low-temperature heating systems such as underfloor heating from corrosion and microbial growth. Offering exceptional value for money, it outperforms more expensive brands while delivering reliable, long-lasting system protection. By preventing rust, limescale, and sludge, it improves heat transfer efficiency and extends system life, helping you reduce energy bills and costly repairs.  

MacDonald Plumbing Supplies MacChem C300 500ml Central Heating System Cleanser

The MacChem C300 Central Heating System Cleanser offers a powerful, cost-effective solution to maintain and restore your heating system. This 500ml formula is as effective as branded alternatives but at half the price. Designed to remove sludge, scale, and debris, it boosts efficiency, extends the lifespan of your system, and ensures optimal performance.

Drayton ZA5/679 2 Port Motorised Valve 22mm Compression

The Drayton ZA5/679 2 Port Motorised Valve 22mm Compression is a reliable and easy-to-install solution for controlling water flow in central heating and hot water systems. Designed with industry standard wiring and a spring-return mechanism, it ensures efficient operation and dependable performance. With a compact design and manual override functionality, it is ideal for both new installations and replacement work.

15mm Gas Pressure Test Point

The 15mm Gas Pressure Test Point is a dependable fitting designed to provide convenient access for pressure testing gas systems. Suitable for use with soldered, compression and crimp fittings, it offers flexibility across a range of installation methods. Its design allows gas engineers to carry out pressure testing efficiently during installation, maintenance and fault finding. The test point can be used in the branch or either end of a standard tee, providing installation flexibility while potentially reducing fitting costs. It also means engineers only need to carry one specialist test point, helping save time and simplify work on site.

Regin Mini Premier Gauge 30MB REGU33

The REGU33 is a smaller size compared to the bigger brothers such as the REGU35 and REGU40 Gauges

Regin Top Up Hand Pump REGK60

Compact, lightweight and convenient mini pump for inflation and pressure adjustments

Regin Zoom Spout® Oiler REGZ22

Each Zoom Spout Oiler is filled with 4 fl oz (us) (118ml) of Unocal 76 Turbine Oil - a superior general purpose lubricating oil. Features a flexible, telescoping, non-conductive plastic spout that extends from approx. 7½” (190mm) to 13½” (340mm). Flash point 210°C. Zoom Spout Oilers are used all over the world by heating & ventilation engineers, maintenance personnel, mechanics, home owners and many more.

Regin Analyser Infrared Printer REGXA55

REGXA55 - Analyser Infra-red Printer

Regin Analyser Sampling Probe Kit REGXA8

REGXA8 - Analyser Sampling Probe Kit  

Regin Thermocouple Tester REGT20

REGT20 - Thermocouple Tester  

Regin Thermocouple Thread Gauge Keyring REGT19

REGT19 - Thermocouple Thread Gauge  

Regin Premier '45' Gauge - Reduced Scale 45mbar REGU35

The one and only 'Regin Premier Gauge'. Tried and tested by thousands of heating engineers all over the U.K for over 30 years and considered the gold standard of gas pressure testing through traditional means. This also means no expensive calibration costs every year as it works through gravitational readings.

Regin Premier '60' Gauge - Reduced Scale 60mbar REGU40

REGU40 - Premier 60 Manometer  

Regin Gas Pressure Test Tee REGU75

REGU75 - Brass Pressure Test Tee  

Regin Standard Pressure Relief Kit REGU77

REGU77 - Standard Pressure Relief Kit  

Regin LPG Pressure Relief Kit inc. Valve Adaptor REGU78

REGU78 - LPG Pressure Relief Kit Inc. Valve Adaptor  

Regin Pressure Test Kit Complete REGU80

REGU80 - Pressure Test Kit Complete  

Regin Brass Pressure Test Nipples - REGQ160

REGQ160 - Brass Pressure Test Nipples  

Regin Landlords Gas Safety Record Pad (25 in triplicate) REGP45

REGP45 - Landlords Gas Safety Record Pad  

Regin Danger – Do Not Use Sticker / Tag (8 pack) REGP36

REGP36 – Danger – Do Not Use Sticker / Tag  

Regin Compressed Gas Warning Diamond Sticker REGP02

REGP02 - Compressed Gas Warning Diamond  

Regin Oil Vacuum Test Kit REGO81

REGO81 - Oil Vacuum Test Kit  

Regin Oil Pressure Test Kit REGO80

REGO80 - Oil Pressure Test Kit  

Regin Oil Pressure Test Manifold REGO40

REGO40 - Oil Pressure Test Manifold  

Regin Installer Service Kit REGM70

REGM70 - Installer’s Service Kit  

Regin Pressure Vessel Pump REGK30

The REGK30 is a hand pump for pressurising pressure vessels. It features an ex- tended 3 metre long hose which helps access difficult to reach areas. The pump is freestanding and has a large, easy to read 0 - 5.1 bar (0 - 75 psi) barrel mounted gauge. The first choice and best selling pump for all engineers.

Regin Dry Pipe Pressure Test Kit REGK10

REGK10 - Dry Pipe Pressure Test Kit Assists the testing of pipework at the carcassing stage.

MacDonald Plumbing Supplies MacPress Long Tail Drain Off Valve Type A 15mm

The MacPress Long Tail Drain Off Valve Type A 15mm offers efficient drainage for gas, LPG, and fuel oil systems. Approved by British Gas to EN 331 standards, this durable valve is ideal for residential and commercial applications, providing reliable performance in demanding environments.     Installation Instructions for Press Fittings   1. Ensure the copper tube is cut squarely. 2. Deburr the pipe internally and externally to form a smooth edge. 3. Check that the ‘O’ ring of the fitting is seated correctly and free from impurities. 4. Do not use jointing compound, oil or grease. 5. Insert the tube to the full depth of the socket. 6. Clearly mark the tube at full depth. 7. Aline the fitting with the jaw of the tool correctly. 8. Make the press connection, using a suitable M profile jaw.