Check Valves and Backflow Preventers Total Products: 341

Backflow Preventer Size 3/8 in Connection MNPT Body Material 316 Stainless Steel Temp Range 33 Degrees to 110 Degrees F Max Temp 110 Degrees F Max ...

Reduced Pressure Zone Assembly Size 8 in Connection Flanged Body Material Cast Iron Temp Range 33 Degrees to 110 Degrees F Max Temp 110 Degrees F M...

Reduced Pressure Zone Assembly Size 6 in Connection Flanged Body Material Cast Iron Temp Range 33 Degrees to 110 Degrees F Max Temp 110 Degrees F M...

Reduced Pressure Zone Assembly Size 4 in Connection Flanged Body Material Cast Iron Temp Range 33 Degrees to 110 Degrees F Max Temp 110 Degrees F M...

Second Check Valve Repair Kit For Use With Watts Series 009 M2 2 in Includes Check Assembly Cover O-ring

Second Check Valve Repair Kit For Use With Watts Series 009 (1-1/4 to 2 in) Includes Check Assembly Cover O-ring

Vacuum Breaker Repair Kit For Use With Watts Series 800 M2 1/2 to 1 in Includes Bonnet O-ring Float Vent Disc Assembly (Vent Float Seal and Spring)

Vacuum Breaker Repair Kit For Use With Watts Series 800 M2 1/2 to 1 in Includes Bonnet O-ring Check Disc Vent Seal

Second Check Valve Repair Kit For Use With Watts Series 007 M2 3/4 in Includes Check Cage Cover O-ring Disc Assembly Seat Seat O-ring Spring

Cap For Use With Watts Series SAE-TC (1/8 in SAE) Size 1/8 in Connection Type SAE Material of Construction Brass

Cap Tether For Use With Watts Series RK-SAE-TC (1/8 in SAE) Size 1/8 in Connection Type SAE Length 11 1/4 in Width 7 3/8 in Material of Constructi...

Air Gap For Use With Watts Series 909 (8 in to 10 in) Size 4 in Connection Type NPT Length 11 1/4 in Width 7 3/8 in Material of Construction Cast I...

Double Check Valve Assembly Series Watts 757 Size 6 in Connection Flanged Body Material Iron Valves Stainless Steel Body Temp Range 33 Degrees F Ma...

Total Relief Kit For Use With Watts Series 009 (M2 or 1 in) Includes Cover O-ring RV spring Seat Seat O-ring Stem and Diaphragm Assembly Stem O-ring

Backflow Preventer Repair Kit For Use With Watts Series 909 6 in Includes Adapter O-ring Bottom Plug O-ring Diaphragm Lubricant Piston O-ring Pist...

Backflow Preventer Repair Kit For Use With Watts Series 009 (M2 or 3/4 in) Includes (2) Molded Disc Assemblies (2) Piston O-rings (2) Seat O-rings ...

Double Check Valve Repair Kit For Use With Watts Series 007 (M3 or 3/4 in) Includes (2) Disc Assemblies (2) Seat O-rings Cover O-ring

Relief Valve Repair Kit For Use With Watts Series 909 (M1 or 4 to 8 in) Includes Adapter O-ring Bottom Plug O-ring Diaphragm Lubricant Piston O-rin...

Relief Valve Repair Kit For Use With Watts Series 009 M2 3/4 in Includes Cover O-ring RV spring Seat Seat O-ring Stem and Diaphragm Assembly Stem ...

Relief Valve Repair Kit For Use With Watts Series 009 (M1 or 1-1/4 to 2 in) Includes Cover O-ring RV spring Seat Seat O-ring Stem and Diaphragm Ass...

Relief Valve Repair Kit For Use With Watts Series 009 2-1/2 to 3 in Includes Cover O-ring Diaphragm Assembly RV spring Seat Seat O-ring Stem O-ring

Second Check Valve Repair Kit For Use With Watts Series 909 8 in Includes Cover O-ring Disc and Spring Assembly Lubricant

Vacuum Breaker Size 3/4 in Connection Type GHT Material of Construction Brass Max Pressure 125 psi Temp Range 180 Degrees F Height 1 1/2 in Width 1...

Vacuum Breaker Size 3/4 in Connection Type GHT Material of Construction Chrome-Plated Brass Seal Rubber Max Pressure 125 psi Temp Range 180 Degrees...