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.

Designed to increase system reliability and reduce maintenance issues, the MacShock 15mm Water Shock Arrestor - Diaphragm provides dependable performance in both domestic and commercial installations. When sudden water flow changes occur—typically from fast-closing valves—this unit prevents the noisy and damaging effects of water hammer by cushioning the shock through a flexible diaphragm mechanism.

Thanks to its 15mm compression fittings, installation is fast and simple, requiring no special tools or ongoing maintenance. Whether retrofitting into an existing system or integrating into a new build, the MacShock arrestor is a smart addition for modern plumbing systems, especially where appliances or metered valves are present.

Features & Benefits:
✅ Prevents water hammer and pipe vibration
✅ 15mm compression ends for quick installation
✅ WRAS Approved for use with potable water
✅ Diaphragm design ensures long-lasting performance
✅ Ideal for systems with water meters and appliances
✅ Protects boilers, valves, and pipework
✅ Compact size fits into tight spaces
✅ Maintenance-free operation
✅ Suitable for hot and cold water systems
✅ Reduces system noise and prolongs appliance life

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