Aprilaire 4280 Shock Arrestor 320735-701 Engineered to open at 180°F

Engineered to open at 180°F

Failure is typically caused by scale accumulation or physical damage to the threads

reducing labor hours and the need for messy sealants

This 5th generation fixed-speed compressor minimizes mechanical failure points by eliminating complex internal valves

Aprilaire 4280 Shock Arrestor 320735-701 Engineered to open at 180°FThe Aprilaire 4280 Shock Arrestor is a high performance water hammer suppressor engineered specifically for residential and commercial HVACR applications. This inline water shock absorber is the primary defense against the damaging effects of water hammer, which occurs when solenoid valves close rapidly, causing pressure spikes and loud pipe vibrations. Optimized for 1 4 inch O. D. copper or plastic tubing, this plumbing surge protector stabilizes