Watts 909RPDA-OSY-CFM-FS 2 1/2 - Part of the 909RPDA Series Window Well Cover relief valve seat o-ring

relief valve seat o-ring

ZB400H-4IH

Its 12 ½-inch (approx

This first or second check valve kit is used to repair or replace the first or second check valve on a 6 inch lead free double check valve assembly backflow preventer

ZN453-4NH-7B

Watts 909RPDA-OSY-CFM-FS 2 1/2 - Part of the 909RPDA Series Window Well Cover relief valve seat o-ringThis 2 1 2 inch reduced pressure detector backflow preventer assembly prevents reverse flow of fire protection system substances from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure. This assembly consists of an epoxy coated cast iron body, OSY resilient seated gate valves, captured spring check valves, replaceable stainless steel seats, top mounted test cocks, a pressure differential relief valve and