Watts LF909M1 OSY NYC FS 8 Part of the LF909 Large Series ZA100F 4NH 50 Minimum Temperature Fahrenheit 33 Outlet 50 Minimum Temperature Fahrenheit 33 Outlet Connection Size 10 IN Outlet Connection Type Grooved Joint Outlet Shutoff Valve Type Outside Stem And Yoke Gate Valve Outlet Thread Type Does Not Apply To Product Part Number F111880 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material EPDM Series 957RPDA Strainer No Technologies Flood Detection Tradename None Specification Sheet 957RPDA This total relief valve repair kit provides all the parts necessary to repair or replace the relief valve assembly on a 3 4 and 1 inch reduced pressure zone assembly backflow preventer Features Features a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve Specification Sheet LF909 Large (French)