Description
The Watts 0794017 8″ Fourth Check Repair Kit is a replacement internal assembly designed to restore proper sealing and flow control in compatible backflow prevention units. It is applied in piping networks associated with HVAC systems, where water supply lines require protection against reverse flow conditions. The kit includes sealing and spring components that renew the check stage inside the valve body, ensuring correct closure and pressure separation. It is installed during maintenance work to existing backflow assemblies used in commercial water handling and mechanical system piping.
