Check Valves and Backflow Preventers

Backflow Preventer Repair Kit For Use With 957-OSY 3 in 957-OSY 4 in Mfr No 957-OSY 21/2 Includes Diaphragm Inlet Coupler O-Ring Piston Assembly

Backflow Preventer Reduced Pressure Zone Outside Stem And Yoke Size 3 In Flanged Connection Material of Construction 304 Stainless Steel Temp Range...

Backflow Preventer Reduced Pressure Zone Outside Stem And Yoke Size 4 In Flanged Connection Material of Construction 304 Stainless Steel Temp Range...

Air Gap For Use With Series 957 (2-1/2 in to 10 in) Size 2 1/2 in to 10 in Connection Type NPT Length 10 3/16 in Width 7 1/2 in Material of Constru...

Air Gap For Use With Series 909 (1-1/4 in to 3 in) Size 1 1/4 in to 3 in Connection Type NPT Length 6 3/4 in Width 4 3/8 in Material of Constructio...

Air Gap For Use With Series 909 (1/4 in to 1/2 in) Size 1/4 in to 1/2 in Connection Type NPT Length 3 1/8 in Width 2 3/8 in Material of Constructio...

Backflow Preventer Reduced Pressure Zone Quarter Turn Size 1/2 In NPT Connection Material of Construction Stainless Steel Temp Range 33 To 180 F Ma...

Air Gap For Use With Series 909 (4 in to 6 in) Size 4 in to 6 in Connection Type NPT Length 9 5/8 in Width 6 3/8 in Material of Construction Cast I...

Double Check Valve Assembly Outside Stem And Yoke Size 4 In Flanged Connection Material of Construction Cast Iron Temp Range 33 To 140 F Max Pressu...

Double Check Valve Assembly Outside Stem And Yoke Size 3 In Flanged Connection Material of Construction Cast Iron Temp Range 33 To 140 F Max Pressu...

Double Check Valve Assembly Outside Stem And Yoke Size 2 1/2 In Flanged Connection Material of Construction Cast Iron Temp Range 33 To 140 F Max Pr...

Backflow Preventer Test Kit Includes (3) 3 ft Hoses (9) Hose Adapters Analog Test Gauge Carrying Case Security Strap 16 in For Use With Reduced Pre...

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

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Cast Iron Pipe or Tube Size 6 in C...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Cast Iron Pipe or Tube Size 5 in C...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Cast Iron Pipe or Tube Size 4 in C...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Cast Iron Pipe or Tube Size 2 1/2 ...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Cast Iron Pipe or Tube Size 2 in C...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Cast Iron Pipe or Tube Size 3 in C...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Bronze Pipe or Tube Size 2 in Conn...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Bronze Pipe or Tube Size 1 1/2 in ...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Bronze Pipe or Tube Size 1 1/4 in ...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Bronze Pipe or Tube Size 1 in Conn...

Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Bronze Pipe or Tube Size 3/4 in Co...