Backflow Repair Parts & Kits

This is the complete RV assembly, brass body with internals and the bolts and o-ring to attach it to the main body as well as hose fittings.

For models 375, 375A, 375AST, 475/475V sizes 2 1/2", 3", 4", 6"

4000SS/5000SS FOR SIZES 2 1/2", 3", 4", 6", 8" and 10" complete relief valve assembly

AMES COMPLETE RELIEF VALVE ASSEMBLY FITTING SIZES 2 1/2" - 10" INCLUDING HOSE FOR MODELS COLT AND MAXIM 400 AND 500 

Watts 2 1/2" - 4" 957 repair kit- rubber total. Kit includes first and second check module o-rings, two red silicone (RS) disc elastomers, two e-clips, relief valve diaphragms, relief valve inlet coupler o-ring and relief valve piston assembly. Ordering # 0889373

Watts 2 1/2"- 10" 957/957RPDA repair kit- relief valve rubbers. Kit includes diaphragm, inlet coupler o-ring and piston assembly. 

4000SS/5000SS RV rubber kit 2 1/2" - 10".  This kit is just the rubbers to rebuild the relief valve only.

Watts 2 1/2" - 3" 909 and LF909 lead free repair kit - rubber total. Kit includes check disc, cover o-ring, sleeve o-ring, piston o-ring, rv disc assembly, diaphragm, piston seal and lubricant. 

Complete #2 check assembly for the 2000SS and 3000SS sizes  2 1/2" - 4" including cam check o-ring.

375, 375A, 375AST, OR 475 RUBBERS FOR RELIEF VALVE FOR  SIZES 2 1/2", 3", 4" AND 6" 

Watts 009 and LF009  2 1/2" - 3" Lead free repair kit- first check kit. Kit includes check assembly, cover o-ring and flow tube o-ring.  

40 SERIES, EITHER THE DOUBLE CHECK OR REDUCED PRESSURE VERSION, 2 1/2"-3" RUBBER REPAIR KIT.  KIT INCLUDES RUBBERS FOR BOTH CHECKS.

Watts 009 and LF009 2 1/2" and 3" lead free repair kit- relief valve total repair kit. Kit includes seat, stem assembly, spring, two piston o-rings, flow tube o-ring and cover o-ring. Ordering # 0794052

909 and LF909 2 1/2" - 3" Repair Kit- Second check rubber. Kit includes check disc, cover o-ring and lubricant. Ordering 

Watts 2 1/2" -  3" 909 lead free repair kit - Vent total kit. Kit includes diaphragm, disc and piston assembly, seat, seat o-ring, adapter o-ring and lubricant. Ordering # 0794085

Watts 009 and LF009 3" Lead Free repair kit- Rubber total. Kit includes diaphragm, two molded disc assemblies, two seat o-rings, rv o-rings, two piston o-rings, rv stem o-ring, flow tube o-ring and cover o-ring. Ordering # 0794056

FOR MODELS 350, 375, 450, and 475 2 1/2"-3" Both check rubbers and o-rings in one kit.

This is not for the 350A or 375A or 350AST or 375AST models!

FEBCO 860/880 2 1/2" - 10" complete internal relief valve assembly including the RV seat that is not shown in the picture.

This is the relief valve rubbers with the RV spring kit. for the 375. 375A, 375AST, 475 models.

Watts RK 909 2 1/2"-3" Repair kit- Rubber parts for the first check. Kit includes check disc, cover o-ring and lubricant. Ordering # 0887220

Watts 709 and LF709 2 1/2" -3" Repair kit- rubber total. Kit includes two discs and two cover o-rings. 

Watts 757/DCDA RS 2 1/2" - 4" First check repair kit. Kit includes first check module, check module o-ring and red silicone disc elastomer.