This product is a Mini-Rester™ 3/4" female swivel hose thread x 3/4" male hose thread tee residential water hammer arrester. Water hammer occurs when the flow of moving water is suddenly stopped by a closing valve. If no measures are taken to control it, expensive fixtures and appliances within the plumbing system may become damaged. This can lead to fractured pipe joints, leaking valves, burst laundry hoses, and premature failure of water heaters and other appliances.

• Water Hammer Arrester Tee with hose thread connection
• Trunk: 3/4" male hose thread - Branch: 3/4" female hose thread
• Arrester body: 304 stainless steel - Piston: polypropylene with two EPDM o-rings - Tee body: UNS C36000 machined brass
• Certified by ASSE to the ANSI/ASSE 1010-2004 standard, AA size cUPC listed to UPC and Canadian codes and standards
• Max working temperature: 250°F - Max working pressure: 250 PSIG - Burst tested: to 1,500 PSIG