View on LOZ Suggested Retail: $556. . SharkBite 3/4 in. Tankless Water Heater Valves Installation Kit 4 Pack. The SharkBite Tankless Water Heater Service Valves Kit connects tankless water heaters to your water supply and allows for easy control and hassle-free maintenance. Included in the package are Hot and Cold Valves and a Pressure relief valve. The Valves connect to the Tankless water Heater with a 3/4 in. IPS Female Connection and then connect to water distribution system with SharkBite Push-to-Connect connections compatible with copper, PEX, and CPVC. Slim-fit valve design is a perfect fit for recessed or cover boxes. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.