Watts 3/4 in. Lead Free Threaded Water Hammer Arrestor

Control water pressure shock and prevent water hammer conditions with this 3/4 inch, unit size B lead free water hammer arrestor. It's made of a copper body with a lead-free brass NPT threaded hex adapter, O-rings and EPDM seals, cap and polypropylene piston. For use in commercial and industrial applications, it is permanently capped and epoxy sealed to absorb shock. It's also not rechargeable and is factory air charged at 60 PSI (4.2 bar). This is ideal for commercial dishwashers, quick-closing faucets and washing machines and it can be installed in new or existing plumbing systems with a standard pipe tee vertically, horizontally or at any angle.