Aprilaire 4280 Shock Arrestor 320735-701 While standardized for ClimateMaster equipment

While standardized for ClimateMaster equipment

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

reducing labor hours and the need for messy sealants

Engineered to open at 180°F

This genuine OEM Trane replacement part

Aprilaire 4280 Shock Arrestor 320735-701 While standardized for ClimateMaster equipmentThe 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