Verified model passport / Watts
009 / LF009 service parts
Reduced pressure zone assembly — selected official service parts
Watts 009 parts are not universal across the 009, 009M2, 009M3, LF009, and sensor variants. This record exposes only the official service references whose model, size, and component boundary are explicit.
This is intentionally not a universal 009 rebuild selector. Confirm the full body marking, nominal size, lead-free designation, and whether the assembly has a sensor or special cover before using any part reference.
Compatibility workstation
Match the size and repair scope.
Use the complete model label, nominal body size, and failed component. The tool only exposes combinations found in the cited manufacturer material.
Choose a size band to reveal compatible published kits.
First check kit
First check assembly and cover O-ring.
Cover repair kit
Cover and cover O-ring.
Relief-valve rubber parts kit
Diaphragm, disc assembly, stem O-rings, seat O-ring, and cover O-ring.
Cover repair kit
Cover and cover O-ring.
Total relief valve kit
Seat, seat O-ring, stem and diaphragm assembly, stem O-ring, cover O-ring, and relief-valve spring.
Cover repair kit
Cover, cover O-ring, sensing passage O-ring, bleed screw O-ring, vent hood, and bleed screw.
First check kit
First check assembly, cover O-ring, and sensing passage O-ring.
Cover repair kit
Cover, cover O-ring, sensing passage O-ring, bleed screw O-ring, vent hood, and bleed screw.
First check kit
First check assembly, cover O-ring, and sensing passage O-ring.
Identity check
Confirm this model before ordering.
Similar-looking assemblies can use different internals. A search result or pipe size alone is not enough.
- 01
Read the whole label: 009, LF009, 009M2, and 009M3 have different published part compatibility.
- 02
A cover kit, first-check kit, and relief-valve kit address separate components; a matching body size is not enough.
- 03
Flood-sensor and connection accessories are not internal repair kits and should not be substituted for one.
Before return to service
A matching kit is not a passed assembly.
Stop for body damage. Cracks, distortion, severe corrosion, or freeze damage can move the job from internal service to replacement.
Test after repair. Where the assembly is regulated, the governing utility or authority decides tester approval, reporting, and deadlines.
Use the current instructions. Part references can change. Confirm availability and supersession with the manufacturer or an authorized supplier.
Find the governing utilityOfficial source ledger
Trace every compatibility claim.
No retailer copy is used as the authority for the kit map.
- 01WattsWatts 009 product record, repair parts breakdowns, and kitsVerified 2026-08-02
- 02WattsWatts LF009 product record and model-specific kit referencesVerified 2026-08-02
- 03WattsWatts 2026 backflow prevention repair kits and parts price listVerified 2026-08-02