This repair kit is for the replacement of the 4 inch Watts lead free backflow preventer first check valve series 909. It consists of a disc assembly, spring and a cover O-ring.
WATTS® First Check Kit, For Use With: Model 909/LF909 4 in Reduced Pressure Zone Assembly
Series
LFRK 909-CK1
Suitable For Use With
Model 909/LF909 4 in Reduced Pressure Zone Assembly
- Original parts insure long service life
- Factory replacement kit
- No special tools required for changing parts
- Parts made of high quality material