Water Hammer Arrestor AW Pax 3/4" M x 3/4" F – Washing Machine & Dishwasher

Protect your washing machine and dishwasher against water hammer

Every time a solenoid valve closes abruptly — as in a washing machine or dishwasher — it generates a hydraulic shock wave known as water hammer. This causes pipe noise and premature wear of your plumbing installations. The AW Pax 3/4" M x 3/4" F shock absorber eliminates these pressure surges at the source, quietly and durably.

Key benefits at a glance

• Absorption of pressure peaks up to 25 bar
• Noise reduction of up to 5 dB(A)
• Compliant with Swiss standard SIA 181
• Installation in under 5 minutes, no special tools required

Installation

Simply screw the shock absorber between the shut-off valve and the supply hose of your washing machine or dishwasher. No modification to existing plumbing required.

Frequently asked questions

Which appliances is it compatible with?

All washing machines and dishwashers with a standard 3/4" connection — the vast majority of appliances sold in Switzerland and Europe.

Does it work with hot water?

Yes, the AW Pax absorber withstands up to 80°C and is suitable for both hot and cold water connections.

What is its service life?

Designed to Swiss quality standards, it is built for long-term use with no maintenance required under normal operating conditions.