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Watts 0887703 is a repair kit for the 800M4 1/2-3/4 inch check assembly used on pressure vacuum breakers. The kit supplies replacement components to restore proper check function and sealing without replacing the entire backflow preventer. It is intended for service of compatible Watts PVB and 800M4 series valves and provides parts to maintain correct flow direction and prevent backflow.
Check disc assembly, check spring, and bonnet O-ring for Watts 800M4 1/2-3/4 inch pressure vacuum breakers; MPN 0887703 (alternate 887703).
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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