MacDonald Plumbing Supplies MacValve WRAS Remote Filling Loop Part L Compliant with Gauge

The MacValve WRAS Remote Filling Loop Part L Compliant with Gauge is a practical and compliant solution for filling and pressurising central heating systems and heat interface units. Designed for flexible installation, it can be fitted remotely from the boiler or cylinder, making it ideal where access is limited or no integral pressure gauge is present. Supplied complete with a gauge and essential safety components, it ensures accurate pressure monitoring and safe system operation.

Rob Pond PressFit 22mm Perfect Pump Valve Pair

The Rob Pond PressFit 22mm Perfect Pump Valve Pair PPV22-PF provides a reliable and efficient solution for connecting circulating pumps in heating systems. Designed with 22mm M profile press connections and 1½" swivel unions, these valves allow quick installation and secure pump isolation. Manufactured from durable nickel plated brass and rated to 16 bar, they offer excellent strength and long-term reliability. Supplied as a matched pair with rubber washers, they ensure a tight seal and simplify installation for professional heating engineers.

MacDonald Plumbing Supplies MacOverflow 21.5mm Overflow to 32mm Waste Adaptor Black PACK OF 10

The MacOverflow 21.5mm Overflow to 32mm Waste Adaptor Black provides a simple and reliable solution for connecting standard 21.5mm overflow pipework into 32mm waste systems. Ideal for use with basins, cisterns and appliances, this adaptor ensures a smooth transition between overflow and waste pipe sizes. The black finish offers a discreet, professional look, particularly suited to concealed or modern installations. Supplied in a practical pack of 10, it is an excellent choice for trade professionals carrying out multiple installations or maintenance work.

MacDonald Plumbing Supplies MacOverflow 21.5mm Overflow to 40mm Waste Adaptor Black PACK OF 10

The MacOverflow 21.5mm Overflow to 40mm Waste Adaptor Black provides a practical and reliable solution for connecting standard 21.5mm overflow pipework into 40mm waste systems. Commonly used on basins, cisterns and appliance overflows, this adaptor ensures a smooth transition between pipe sizes while maintaining correct flow and alignment. The black finish is ideal for modern installations or where pipework is visible. Supplied in a trade-friendly pack of 10, it is well suited to professional plumbers and maintenance engineers.

MacDonald Plumbing Supplies MacOverflow 45 Deg Obtuse Bend 21.5mm Black PACK OF 10

The MacOverflow 45 Deg Obtuse Bend 21.5mm Black is a reliable and versatile fitting designed to create a smooth 45 degree change of direction in 21.5mm overflow pipework. Its obtuse angle promotes efficient water flow while reducing the risk of turbulence or restriction. Made from robust black plastic, it is ideal for installations where a discreet, low visibility fitting is preferred. Suitable for domestic and commercial overflow systems, this bend delivers a secure, leak free connection and ensures long term performance.

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 MacValve 22mm Chrome Plated Angled Auto Bypass Valve

The MacValve 22mm Chrome Plated Angled Auto Bypass Valve is designed to maintain efficient water circulation in central heating systems. It automatically opens to allow flow when thermostatic radiator valves close, preventing pressure build-up and protecting system components. With adjustable pressure settings and a durable chrome-plated finish, it offers reliable and long-lasting performance.

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.

MacDonald Plumbing Supplies MacTRV 15mm White Head TRV & Lockshield Pack

The MacTRV 15mm White Head TRV & Lockshield Pack is a complete solution for controlling radiator temperature efficiently. Featuring a 15mm angled thermostatic radiator valve and matching lockshield, it allows precise heat regulation while improving energy efficiency. With a liquid-filled sensor and built-in frost protection, it ensures consistent performance in domestic heating systems.

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.

MacDonald Plumbing Supplies Gate Type Pump Valve 22mm WRAS Approved

This Gate Type Pump Valve (22mm) with WRAS approval provides reliable flow control for pump systems.

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.

MacDonald Plumbing Supplies MacValve 15mm & 22mm Pressure Reducing Valve & Gauge

The MacValve 15mm & 22mm Pressure Reducing Valve, complete with a pressure gauge, is designed to efficiently regulate and reduce pressure in plumbing and heating systems. With dual compatibility for 15mm and 22mm pipe sizes, this valve offers flexible installation and ensures system protection by controlling excessive water pressure. Adjustable outlet pressure between 1 and 6 bar with a factory pre-set of 3 bar.

MacDonald Plumbing Supplies MacValve 15mm WRAS Filling Loop Part L

The MacValve 15mm WRAS Filling Loop Part L is a reliable and compliant solution for refilling and maintaining pressure in domestic and commercial heating systems. Designed to meet Part L regulations and fully WRAS approved, it ensures safe operation while preventing backflow contamination. Suitable for use with boilers and other pressurised systems, this filling loop offers a straightforward and dependable method for topping up system pressure.