top of page

The C1020 is a Copper piston Water Hammer Arrestor (WHA) designed specifically for washing machines and dishwashers. It features LEAD FREE brass fittings, ensuring safe usage with drinking water. Integrated with an 'AA' size WHA and a 'Tee' fitting featuring 3/4" (20mm) BSP connections (male/female), it enables direct machine connection via the swivel female connection, while the hose attaches to the male side of the Tee. As part of the SURGEx DIY series, it can be easily installed without the need for special expertise and is suitable for general plumbing with 20mm (3/4") connections. The C1020 is versatile, suitable for both cold and hot water, and adaptable to new or existing installations. Pre-charged with Nitrogen at the factory, it requires no recharging and is maintenance-free.



  • Seamless body fabricated from hard drawn copper to ensure smooth movement of the piston.

  • Piston design provides superior resistance to water hammer and hydraulic shock and ensure durability and long service life with maintenance-free operation.

  • Compact size and slim design for easy installation in tight spaces, minimizing the area consumed.

  • Can be installed at any position.

  • Available with BSP connection diameter DN20 (¾”), with swivel female connection to ease installation as DIY.

  • Designed to connect directly to any standard washing machine or dishwasher with BSP connection.

  • Factory pre-charged at 60 PSI (4.2 BAR) with nitrogen and hermetically sealed, no need to charge after installation.

  • Lead-free brass adapter for drinking water, safe for drinking water.

  • High working pressure up to 24 BAR (350 PSIG) and high working temperature up to 121C (250F).

  • Manufactured and designed in accordance with the latest American and Australian standards and sized in accordance with a well-recognized international design code/standard.



    • Washing Machines
    • Dishwashers
    • General Plumbing

    SURGEx C1020 Water Hammer Arrestor size AA Dishwasher / Washing machine 20mm

    SKU: SUR-C1020
    bottom of page