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- This first check repair kit provides all the parts necessary to repair or replace the first check on a 2 1/2 to 4 inch reduced pressure valve assembly backflow preventer, model 957 and reduced pressure detector assembly backflow preventer, model 957DCDA. This kit consists of first check module, check module O-ring and EPDM disc elastomer.
WATTS® First Check Kit, For Use With: Model 957/LF957RPDA/957RPDA 2-1/2 to 4 in Reduced Pressure Zone Assembly
- Factory replacement kit
- No special tools required for servicing
- All parts are made of high quality materials
- Parts are specific to valve size
- First Check Module, Check Module O-ring, EPDM Disc Elastomer
- Domestic / ImportDomesticSpecificationsLead FreeTypeFirst Check KitManufacturerWatts Water TechnologiesManufacturer #7018129SeriesRK-957 / 957RPDA