Aprilaire 4280 Shock Arrestor 322838-753 and a strap wrench

and a strap wrench

As a primary flame spreader assembly

What is the staging behavior on this model

and a clear mechanical position indicator for rapid diagnostic checks on-site

Aprilaire 4280 Shock Arrestor 322838-753 and a strap wrenchThe 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