Description
The Watts 7018133 Backflow Preventer Second Check Repair Kit is a service component designed for use in 6″ Series check valve assemblies. It restores the second check valve operation by providing a complete internal repair set, including the check module, O-ring, and sealing elastomer. This kit is installed within potable water protection systems to maintain proper backflow prevention and ensure contaminants do not re-enter the water supply. It is commonly used in commercial and industrial water distribution lines systems where closed-loop water protection is required.









