This first or second check valve kit provides all the parts necessary to repair or replace the first or second check valve on a 4 inch lead free double check valve assembly backflow preventer, model LF709. This kit consists of a disc and spring assembly, cover O-ring, upper stem O-ring, and lower stem O-ring.
Features
- Factory replacement kit
- No special tools required for servicing
- All parts are made of high quality materials
- Fits 4 IN double check valve assembly