Watts RK 009SSM3 RT Backflow Preventer Repair Kit

Kit Contents

This repair kit contains disc assemblies, RV seat O-rings, seat O-rings, a cover O-ring, a diaphragm and stem O-rings for Watts No. 009QT backflow preventers. It is intended for plumbers and maintenance staff who service those specific assemblies. The transparent colour helps visual inspection of the components during installation. The package ships new from the supplier.

Compatibility Check

Verify that the installed backflow preventer is a Watts No. 009QT before ordering this kit. Confirm the valve size falls within the 1/4 to 3/4 range indicated for the RK 009SSM3 RT model. Inspect the existing seats, discs and diaphragm for wear or chemical damage to ensure a complete overhaul is warranted. The product carries a California Proposition 65 warning for cancer and reproductive harm.

Upgrade Scope

This kit restores original sealing performance by replacing all internal soft goods in a single service visit. It is not a substitute for a new valve body or for preventers of a different make or model. The jump is worth it when the seat O-rings, cover O-ring and diaphragm have degraded but the bronze body and test cocks remain sound. Buyers needing a different valve size or a full replacement unit should look elsewhere.