Mini-Rester Water Hammer Arrestor, Straight - 1/2" Expansion PEX (Lead Free)

Sioux Chief 660 Series piston-type water hammer arresters shall be required in piping systems. Water hammer arresters shall have sufficient volume of air to dissipate the calculated kinetic energy generated in the piping system. Arresters shall be effective when installed at any angle. Arresters shall be approved for installation with no access panel required. Water hammer arresters shall be ANSI/ASSE 1010 2004 certified. Arresters shall be sized and placed per manufacturer’s instructions. Materials Arrester body: type L copper tube Piston: poly piston with two EPDM o-rings Fitting: no-lead brass or copper Piston lubrication: Dow-Corning, 111 FDA approved silicone compound Products marked with the "No Lead" icon comply with national, no lead product material requirements and also comply with NSF 61, which allows the product to contain no more than 0.25% lead All MiniResters are AA size