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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
This genuine OEM Trane replacement part
While standardized for ClimateMaster equipment
Failure is typically caused by scale accumulation or physical damage to the threads
As a direct replacement for PUM2011 and PUM3011
Aprilaire 4280 Shock Arrestor 320735-701 This genuine OEM Trane replacementThe 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
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