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Watts 0887713 is a seat repair kit for 1 in pressure vacuum breaker (PVB) backflow preventers. The kit includes the replacement seat, seat O-ring, and bonnet O-ring to restore proper sealing and function of the PVB seat assembly. It is a factory replacement kit compatible with Watts 800M4 series and WA800M4QT models and is designed for servicing without special tools.
Seat and O-ring repair kit for 1 in Watts PVB models to restore seat sealing and function
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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