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.

MacDonald Plumbing Supplies Dosing Funnel

The MacDonald Plumbing Supplies Dosing Funnel provides a fast, clean, and convenient method of introducing inhibitors, sludge removers, and other heating system treatment chemicals into a central heating system via a radiator. Supplied with a ½" BSP adaptor, it connects directly to the radiator, allowing chemicals to be poured into the system with minimal mess. It is an essential tool for heating engineers carrying out routine servicing and system maintenance.

Todays Tools PlumbThumb PTHUMB

The Todays Tools Plumb Thumb PTHUMB is a practical pipe isolation tool designed to simplify plumbing maintenance without the need to drain the entire system. Featuring a convenient double-ended design, it allows plumbers to temporarily isolate pipework quickly and cleanly, reducing downtime and mess. Manufactured from durable materials for repeated professional use, the Plumb Thumb is an essential addition to any plumber's toolkit.

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.

MacDonald Plumbing Supplies MacTape Cloth Insulation Tape 50mm x 50mtr Silver

The MacTape Cloth Insulation Tape 50mm x 50Mtr Silver is a reliable, heavy-duty solution designed for professional sealing, jointing and general repair applications. Manufactured from strong yet flexible polythene-coated fabric, this cloth tape delivers excellent durability while remaining easy to handle and apply. The aggressive pressure-sensitive high-tack adhesive ensures a secure bond on a wide range of surfaces, making it ideal for both indoor and outdoor use. With good water resistance and excellent conformability, this tape is well suited for plumbing, heating, electrical and general maintenance tasks where a dependable seal is required.

MacDonald Plumbing Supplies MacValve Water Drain Valve with Hose Tail ½" BSP

The MacValve Water Drain Valve is a durable and reliable solution for draining water from boilers and manifolds. Featuring a ½" BSP hose tail connection, a secure lever valve, and a closing cap with ring nut, this valve ensures efficient water drainage while preventing leaks.

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.

Trappex 28mm Genesis Brass Filter Without Valves

The Trappex 28mm Genesis Brass Filter Without Valves is a compact, high-quality in-line system filter that offers easy installation and quick cleaning. Manufactured with a robust brass body and triple radial EPDM seals, it is designed to capture both magnetic and non-magnetic particles, ensuring optimal system efficiency. This filter can be fitted horizontally or vertically, making it ideal for small or restricted access areas.

Instantor 771928 Universal Pump Head Replacement Kit - 8 Metre with Wilo PWM Adaptor Cable

The Instantor Universal Pump Head Replacement Kit (771928) is an 8-metre, high-performance, energy-efficient replacement solution compatible with various boiler systems. This modulating pump, complete with a Wilo PWM adaptor cable, offers flexible control settings to maximise boiler efficiency. Its features include a 31.6L/min flow rate, multiple pressure modes, and eco-friendly operation. This pump kit also includes all necessary accessories for simple installation and is compliant with ErP energy standards.

Instantor 771929 Universal Pump Head Replacement Kit - 8 Metre CCW with Grundfos Adaptor Cable

The Instantor Universal Pump Head Replacement Kit – 8 Metre CCW (771948) with Wilo and Grundfos adaptor cables provides a high-performance solution for various heating systems. This modulating pump offers control flexibility with multiple settings and pulse width modulation (PWM) compatibility. Designed for easy retrofit in most applications, it enhances boiler efficiency, delivering a quiet, energy-efficient operation with an Energy Efficiency Index (EEI) of ≤ 0.23. The kit includes all necessary installation components and is fully ErP compliant.

Trappex 28mm Genesis Brass Filter With Valves

The Trappex 28mm Genesis Brass Filter with Valves offers superior filtration for heating systems, capturing both magnetic and non-magnetic particles. Built with a robust brass body, this filter ensures optimal system efficiency and longevity, complete with a 25-year warranty for peace of mind.

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.

MacDonald Plumbing Supplies MacChem 18Ltr Stainless Steel Dosing Pot (DPSS18)

Explore the 18Ltr Stainless Steel Dosing Pot (DPSS18), featuring durable 304 stainless steel construction, a polished finish, and wall mounting brackets. Ideal for closed systems, this dosing pot facilitates the addition of water treatments and chemicals without the need for system shutdown.

MacDonald Plumbing Supplies MacChem 25Ltr Stainless Steel Dosing Pot (DPSS25)

Explore the 25Ltr Stainless Steel Dosing Pot (DPSS25), featuring durable 304 stainless steel construction, a polished finish, and wall mounting brackets. Ideal for closed systems, this dosing pot facilitates the addition of water treatments and chemicals without the need for system shutdown.

MacDonald Plumbing Supplies MacChem 11Ltr Stainless Steel Dosing Pot (DPSS11)

Explore the 11Ltr Stainless Steel Dosing Pot (DPSS11), featuring durable 304 stainless steel construction, a polished finish, and wall mounting brackets. Ideal for closed systems, this dosing pot facilitates the addition of water treatments and chemicals without the need for system shutdown.

MacDonald Plumbing Supplies MacChem 6Ltr Stainless Steel Dosing Pot (DPSS06)

Explore the 6Ltr Stainless Steel Dosing Pot (DPSS06), featuring durable 304 stainless steel construction, a polished finish, and wall mounting brackets. Ideal for closed systems, this dosing pot facilitates the addition of water treatments and chemicals without the need for system shutdown.

MacDonald Plumbing Supplies MacChem 3.5Ltr Stainless Steel Dosing Pot (DPSS03.5)

Explore the 3.5Ltr Stainless Steel Dosing Pot (DPSS03.5), featuring durable 304 stainless steel construction, a polished finish, and wall mounting brackets. Ideal for closed systems, this dosing pot facilitates the addition of water treatments and chemicals without the need for system shutdown.

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.

Trappex Powerflush Connector

The Trappex Powerflush Connector is a durable brass flushing adaptor designed to provide a quick and secure connection between Genesis magnetic filters and power flushing machines. Easy to install and engineered for full-flow efficiency, it enables effective system cleaning while maintaining reliable performance in demanding heating system applications.

Trappex 22mm Genesis Brass Filter Without Valves

Designed for installation in small or restricted access areas. With the in-line system filter it is easy to install and fast and convenient to clean. With the aid of triple radial high performance EPDM seals. Manufactured from high quality robust brass. Can be fitted horizontally and vertically comes with a 25 year warranty.

Trappex 22mm Genesis Brass Filter With Valves

Designed for installation in small or restricted access areas. With the in-line system filter it is easy to install and fast and convenient to clean. With the aid of triple radial high performance EPDM seals. Manufactured from high quality robust brass. Can be fitted horizontally and vertically comes with a 25 year warranty.

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.

Altecnic Caleffi XS 22mm Filter 545912

The Altecnic Caleffi XS 22mm Magnetic Filter 545912 is a compact and highly efficient magnetic system filter designed to protect domestic heating systems from circulating debris. Featuring a powerful internal magnet and stainless steel mesh filter, it captures both magnetic and non-magnetic contaminants to help maintain boiler efficiency and prolong system life. With integrated isolation, visual inspection windows, and 22mm compression connections, it offers simple installation and straightforward servicing.

MacDonald Plumbing Supplies MacVent 15mm Compression Air Vent

The MacVent 15mm Compression Air Vent is a versatile manual air vent designed for use with 15mm compression fittings in heating, cooling, and other wet systems. Manufactured from durable brass, it can replace a standard 15mm olive to provide a convenient venting point. Suitable for both temporary and permanent applications, it offers a reusable and practical solution for installers working on vented and unvented systems.

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

REGP26 – Danger – Do Not Use Sticker / Tag  

Regin Leak Shot 100ml - REGL15

Our new sized bottle of leak in a perfect 100ml size.  

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 Denso Protective Tape 50mm x 10Mtr

The Denso Protective Tape 50mm x 10Mtr is a highly durable self-adhesive tape designed to provide long-lasting waterproofing and corrosion protection for pipes, fittings, valves, and metal surfaces. Measuring 50mm wide and supplied on a 10-metre roll, it creates a reliable watertight and airtight barrier that helps extend the life of plumbing and industrial installations. Its flexible construction allows it to conform easily to irregular shapes, making it ideal for maintenance, repairs, and new installations.

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.

MacDonald Plumbing Supplies Drain Off Valve Type A 1/2"

The Drain Off Valve Type A 1/2" provides a reliable and efficient solution for draining water from plumbing systems.

MacDonald Plumbing Supplies Drain Off Valve Type A 3/4"

The Drain Off Valve Type A 3/4" provides an effective and convenient solution for draining water from plumbing systems.

Teddington 3Mtr Remote Fire Valve 90 Degree Setting KBB/C/90

The KBB fire valve is thermally operated and are designed with a fast acting spring loaded trip mechanism, which will stop the flow of oil in the event of a fire or overheating.

Teddington 6Mtr Remote Fire Valve 90 Degree Setting KBB/C/90

The KBB fire valve is thermally operated and are designed with a fast acting spring loaded trip mechanism, which will stop the flow of oil in the event of a fire or overheating.

Teddington 2Mtr Remote Fire Valve 90 Degree Setting KBB/C/90

The KBB fire valve is thermally operated and are designed with a fast acting spring loaded trip mechanism, which will stop the flow of oil in the event of a fire or overheating.

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.

Tesla (UK) Tesla 18" Copper Immersion Heater Including Stat TIH515

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Copper construction Not suitable for stainless steel cylinders For soft water areas only

Tesla (UK) Tesla 23" Copper Immersion Heater Including Stat TIH520

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Copper construction Not suitable for stainless steel cylinders For soft water areas only

Tesla (UK) Tesla 27" Copper Immersion Heater Including Stat TIH525

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Copper construction Not suitable for stainless steel cylinders For soft water areas only

Tesla (UK) Tesla 30" Copper Immersion Heater Including Stat TIH530

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Copper construction Not suitable for stainless steel cylinders For soft water areas only

Tesla (UK) Tesla 36" Copper Immersion Heater Including Stat TIH535

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Copper construction Not suitable for stainless steel cylinders For soft water areas only

Tesla (UK) Tesla 11" Incoloy immersion heater & stat copper pocket TIH540

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Incoloy-copper construction Suitable for stainless steel cylinders For medium and hard water areas

Tesla (UK) Tesla 14" Incoloy immersion heater & stat copper pocket TIH545

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Incoloy-copper construction Suitable for stainless steel cylinders For medium and hard water areas

Tesla (UK) Tesla 18" Incoloy immersion heater & stat copper pocket TIH547

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Incoloy-copper construction Suitable for stainless steel cylinders For medium and hard water areas

Tesla (UK) Tesla 27" Incoloy immersion heater & stat copper pocket TIH550

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Incoloy-copper construction Suitable for stainless steel cylinders For medium and hard water areas

Tesla (UK) Tesla 14" Copper Immersion Heater Including Stat TIH510

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Copper construction Not suitable for stainless steel cylinders For soft water areas only

Altecnic 22mm x 28mm Straight Plastic Tundish AP-400011

SPECIFICATION Suitable for use where air gap or air break is required in sealed or unvented systems.

Tesla (UK) Tesla 11" Copper Immersion Heater Including Stat TIH505

Immersion heater with resettable dual safety thermostat, sealing washer and leaflet 2 1/4 inch boss Copper construction Not suitable for stainless steel cylinders For soft water areas only

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 Rad Valve Change Kit REGR05

The Regin Radvalve Change kits are. Used for changing radiator valves without draining down. The kit comprises of 2 patented rubber bungs, key pattern fixing clip and a radiator air bleed key. For use on 15mm & 22mm pipework. Supplied in strong nylon zip bag. See REGR10 Radtrap Drainage Pad for details of an associated useful product.

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 Gas Emergency Control Sticker (8 Pack) REGP40

REGP40 - Gas Emergency Control Sticker  

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

REGP36 – Danger – Do Not Use Sticker / Tag  

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 Pressurisation Pump Angled Adaptor REGK29

REGK29 - Pressurisation Pump Angled Adaptor  

Regin Pressurisation Pump Straight Adaptor REGK28

REGK28 - Pressurisation Pump Straight Adaptor  

MacDonald Plumbing Supplies MacVent 15mm Auto Air Vent Compression

The MacVent 15mm Auto Air Vent Compression offers a high-quality solution to prevent trapped air in heating systems. Built from premium materials, it operates efficiently under pressures up to 10 bar and temperatures up to 100°C, providing consistent and reliable performance in residential and commercial heating applications.

Rob Pond Self Cutting Drain Off Cock

The Self Cutting Drain Off Cock is a practical and efficient solution for draining water from plumbing and heating systems without the need for pipe cutting or system dismantling. Designed for quick installation on 15mm copper pipe, it allows plumbers to create an instant drain point even when existing drain valves are inaccessible. Ideal for emergency work and maintenance tasks, this reusable tool enables fast, clean system draining with minimal spillage, making it an essential addition to any professional plumbing kit.

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

The MacPress Long Tail Drain Off Valve Type A 15mm is a practical plumbing and heating component designed to provide a convenient point for draining water from compatible pipework and heating systems. Its long tail design offers additional reach for suitable installation requirements, while the Type A configuration identifies the specific valve style. Suitable for plumbers and heating engineers carrying out installation, maintenance and repair work, this drain off valve is a useful addition to a range of plumbing fittings. The 15mm size makes it suitable for compatible pipework, helping tradespeople access a dedicated drain point when servicing or emptying a system.

MacDonald Plumbing Supplies MacValve 15mm Type A Brass Drain Off Valve

The MacValve 15mm Type A Brass Drain Off Valve is a robust and essential component for ensuring efficient water drainage in plumbing systems. Suitable for both residential and commercial applications, this high-quality valve is designed for durability, corrosion resistance, and ease of use. Perfect for draining radiators, heating systems, and other water-filled equipment.