We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Watts 009 M3 3/4 inch total relief kit components laid out

Watts

Watts 009 M3 3/4 in Total Relief Kit bath faucet part

SKU CH-RNWA-BC05M

A complete rebuild kit for Watts Series 009 M3 3/4 inch backflow preventers, including cover O-ring, RV spring, seat, seat O-ring, stem and diaphragm assembly, and stem O-ring

  • TypeOther
  • Complete relief kit for Watts Series 009 M3 valves
  • Includes cover O-ring, RV spring, seat and seat O-ring
  • Stem and diaphragm assembly with stem O-ring supplied
  • Ready-to-install package restores valve performance
  • New condition ensures reliable long-term operation

Watts 009 M3 3/4 in Total Relief Kit

This kit provides replacement components for Watts Series 009 backflow preventers in the 3/4 inch size. It contains the cover O-ring, RV spring, seat, seat O-ring, stem and diaphragm assembly, and stem O-ring. It is intended for maintenance technicians and plumbers servicing these specific valves.

Sustained load behavior

The kit restores sealing and relief function so the valve performs to its original specification over continuous duty cycles. Replacing the spring, seat, and diaphragm assembly together maintains consistent pressure response during prolonged operation. All parts are new and manufactured to the same standards as the original components.

Installation and common issues

Installation requires disassembly of the valve body, so the water supply must be shut off and the system depressurised first. A frequent problem is reusing the old cover O-ring or seat O-ring, which can cause leaks after reassembly. The kit includes every seal and moving part needed to avoid that mistake. California Proposition 65 warning applies.

Highlights

  • Complete relief kit for Watts Series 009 M3 valves
  • Includes cover O-ring, RV spring, seat and seat O-ring
  • Stem and diaphragm assembly with stem O-ring supplied
  • Ready-to-install package restores valve performance
  • New condition ensures reliable long-term operation

Specifications

BrandWATTS
TypeOther

Questions about this item

Does the 3/4 in Total Relief Kit generate noise or heat during continuous daily operation?

The kit contains only passive sealing components — an O-ring, spring, seat and diaphragm assembly — so it adds no noise, heat or power draw to the system.

What existing valve body must I already own for the Watts 009 M3 3/4 in Total Relief Kit to function?

The kit is designed for use with a Watts Series 009 valve in either the M3 or 3/4 in configuration; the original valve body must be in place before installation.

Will the replacement stem and diaphragm assembly in this kit work with an older Watts Series 009 valve I have kept in service?

Yes, the included stem and diaphragm assembly is made for the Series 009 M3 or 3/4 in valve, so it restores sealing on those older bodies without modification.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.