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and smart installation features
This 8 IN flange accessory kit for series 709 and 909 helps to prevent the reverse flow of polluted water from entering into the potable water supply
Fits 1 1/4 to 2 inch freeze resistant pressure vacuum breaker
The maximum temperature is 180 degree F (82C)
Watts LFRK 709-CK4 4 - Part of the RK-LF709 Series ZA100F-6NH and smart installation featuresThis 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