Febco 856 66 76 86 SM 8 Part of the RK LF856 LF876 866 886 Series American Wick Drain This lead free pressure relief This lead free pressure relief valve has a 3 4 inch NPTF female inlet and outlet and a 85 psi pressure relief setpoint 50 Minimum Temperature Fahrenheit 33 Outlet Connection Size 6 IN Outlet Connection Type Flanged Joint Outlet Shutoff Valve Type Outside Stem And Yoke Gate Valve Outlet Thread Type Does Not Apply To Product Part Number F191640 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Engineered Plastic Series 957 Strainer No Technologies Flood Detection Tradename None Specification Sheet 957 LF886 Compatible Size Used On 6 IN Kit Type Check Spring Kit Lead Free YES Product Group KITS UPC 098268085020 All parts are made of high quality materials