Skip to content
Check Valves and Backflow Preventers

Check Valves and Backflow Preventers Total Products: 2164

Sub Collections

Check Valves
Check Valves
Sanitary Check Valves
Sanitary Check Valves
Vacuum Breakers
Vacuum Breakers
Backflow Preventers
Backflow Preventers
Backflow Preventer Test Kits
Backflow Preventer Test Kits
Backflow Preventer Repair Kits
Backflow Preventer Repair Kits
Backflow Preventer Accessories
Backflow Preventer Accessories
Flow Control Check Valves
Flow Control Check Valves
Surge Relief Valves
Surge Relief Valves
Foot Valve Spring Bronze 2
Foot Valves
Backwater Valve 4 in PVC 120 Deg F
Backwater Valves

Filters

$
$
Spring Check Valve Brass 1-1/2 FNPT

Spring Check Valve Brass 1-1/2 FNPT

CAMPBELL
$71.97 - $71.97
$71.97
$71.97 - $71.97
$71.97

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

View full Details
$71.97 - $71.97
$71.97
$71.97 - $71.97
$71.97
Spring Check Valve Brass 1-1/4 FNPT

Spring Check Valve Brass 1-1/4 FNPT

CAMPBELL
$50.13 - $50.13
$50.13
$50.13 - $50.13
$50.13

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

View full Details
$50.13 - $50.13
$50.13
$50.13 - $50.13
$50.13
Spring Check Valve Brass 3/4 FNPT

Spring Check Valve Brass 3/4 FNPT

CAMPBELL
$23.67 - $23.67
$23.67
$23.67 - $23.67
$23.67

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

View full Details
$23.67 - $23.67
$23.67
$23.67 - $23.67
$23.67
Backflow Test Kit Hose for 835 845-5 847

Backflow Test Kit Hose for 835 845-5 847

MIDWEST INSTRUMENT
$279.61 - $279.61
$279.61
$279.61 - $279.61
$279.61

Backflow Test Kit Replacement Hose Includes (3) Replacement Hoses For Use With Grainger Item 34CU33

$279.61 - $279.61
$279.61
$279.61 - $279.61
$279.61
Backflow Test Kit Hose for Model 830

Backflow Test Kit Hose for Model 830

MIDWEST INSTRUMENT
$259.66 - $259.66
$259.66
$259.66 - $259.66
$259.66

Backflow Test Kit Replacement Hose Includes (3) Replacement Hoses For Use With 34CU34 34CU35 6AJV6

$259.66 - $259.66
$259.66
$259.66 - $259.66
$259.66
Backflow Preventer Test Kit Model 830

Backflow Preventer Test Kit Model 830

MIDWEST INSTRUMENT
$2,293.61 - $2,293.61
$2,293.61
$2,293.61 - $2,293.61
$2,293.61

Backflow Preventer Test Kit 5 Valve Includes (3) 5ft Hoses Analog test Gauge Carrying Case Certificate of Calibration. Clear 4 ft Bleed Tube NPT Ad...

View full Details
$2,293.61 - $2,293.61
$2,293.61
$2,293.61 - $2,293.61
$2,293.61
Vacuum Breaker 1-3/4inH Freeze Relief

Vacuum Breaker 1-3/4inH Freeze Relief

WATTS
$96.21 - $96.21
$96.21
$96.21 - $96.21
$96.21

Atmospheric Vacuum Breaker Size 3/4 in Connection Type FGHT x MGHT Material of Construction Lead Free Copper Silicon Alloy Seal Rubber Max Pressure...

View full Details
$96.21 - $96.21
$96.21
$96.21 - $96.21
$96.21
Vacuum Breaker 1-1/2inH Tamper-Proof

Vacuum Breaker 1-1/2inH Tamper-Proof

WATTS
$71.89 - $71.89
$71.89
$71.89 - $71.89
$71.89

Atmospheric Vacuum Breaker Size 3/4 in Connection Type FGHT x MGHT Material of Construction Lead Free Chrome Copper Silicon Alloy Seal Rubber Max P...

View full Details
$71.89 - $71.89
$71.89
$71.89 - $71.89
$71.89
Vacuum Breaker 1-1/2inH Chrome Finish

Vacuum Breaker 1-1/2inH Chrome Finish

WATTS
$102.20 - $102.20
$102.20
$102.20 - $102.20
$102.20

Atmospheric Vacuum Breaker Size 3/4 in Connection Type FGHT x MGHT Material of Construction Lead Free Chrome Copper Silicon Alloy Seal Rubber Max P...

View full Details
$102.20 - $102.20
$102.20
$102.20 - $102.20
$102.20
Dual Check Vacuum Breaker 9-5/8inH

Dual Check Vacuum Breaker 9-5/8inH

WATTS
$1,082.06 - $1,082.06
$1,082.06
$1,082.06 - $1,082.06
$1,082.06

Dual Check Vacuum Breaker Size 2 in Connection Type FNPT Material of Construction Cast Bronze Seal Silicone Max Pressure 150 psi Temp Range 33 Degr...

View full Details
$1,082.06 - $1,082.06
$1,082.06
$1,082.06 - $1,082.06
$1,082.06
Freeze Resistant Vacuum Breaker 9inH

Freeze Resistant Vacuum Breaker 9inH

WATTS
$852.33 - $852.33
$852.33
$852.33 - $852.33
$852.33

Freeze Resistant Vacuum Breaker Size 1 1/4 in Connection Type FNPT Material of Construction Cast Bronze Seal Silicone Max Pressure 150 psi Temp Ran...

View full Details
$852.33 - $852.33
$852.33
$852.33 - $852.33
$852.33
Freeze Resistant Vacuum Breaker 6-1/4inH

Freeze Resistant Vacuum Breaker 6-1/4inH

WATTS
$422.71 - $422.71
$422.71
$422.71 - $422.71
$422.71

Freeze Resistant Vacuum Breaker Size 1/2 in Connection Type FNPT Material of Construction Cast Bronze Seal Silicone Max Pressure 150 psi Temp Range...

View full Details
$422.71 - $422.71
$422.71
$422.71 - $422.71
$422.71
Reduced Pressure Zone 994 10in Flanged

Reduced Pressure Zone 994 10in Flanged

WATTS
$20,991.88 - $20,991.88
$20,991.88
$20,991.88 - $20,991.88
$20,991.88

Reduced Pressure Zone Assembly Series Watts 994 Size 10 in Connection Flanged Body Material Stainless Steel Temp Range 33 to 110 Degrees F Max Temp...

View full Details
$20,991.88 - $20,991.88
$20,991.88
$20,991.88 - $20,991.88
$20,991.88
Reduced Pressure Zone 994 4in Flanged

Reduced Pressure Zone 994 4in Flanged

WATTS
$5,709.92 - $5,709.92
$5,709.92
$5,709.92 - $5,709.92
$5,709.92

Reduced Pressure Zone Assembly Series Watts 994 Size 4 in Connection Flanged Body Material Stainless Steel Temp Range 33 to 110 Degrees F Max Temp ...

View full Details
$5,709.92 - $5,709.92
$5,709.92
$5,709.92 - $5,709.92
$5,709.92
ReducedPressureZone 994 2-1/2in Flanged

ReducedPressureZone 994 2-1/2in Flanged

WATTS
$4,394.82 - $4,394.82
$4,394.82
$4,394.82 - $4,394.82
$4,394.82

Reduced Pressure Zone Assembly Series Watts 994 Size 2 1/2 in Connection Flanged Body Material Stainless Steel Temp Range 33 to 110 Degrees F Max T...

View full Details
$4,394.82 - $4,394.82
$4,394.82
$4,394.82 - $4,394.82
$4,394.82
Reduced Pressure Zone Watt919 3/4in FNPT

Reduced Pressure Zone Watt919 3/4in FNPT

WATTS
$922.02 - $922.02
$922.02
$922.02 - $922.02
$922.02

Reduced Pressure Zone Assembly Series Watts 919 Size 3/4 in Connection FNPT Body Material Bronze Temp Range 33 to 180 Degrees F Max Temp 180 Degree...

View full Details
$922.02 - $922.02
$922.02
$922.02 - $922.02
$922.02
Reduced Pressure Zone Watt009 3/4in FNPT

Reduced Pressure Zone Watt009 3/4in FNPT

WATTS
$627.11 - $627.11
$627.11
$627.11 - $627.11
$627.11

Reduced Pressure Zone Assembly Series Watts 009 Size 3/4 in Connection FNPT Body Material Bronze Temp Range 33 to 180 Degrees F Max Temp 180 Degree...

View full Details
$627.11 - $627.11
$627.11
$627.11 - $627.11
$627.11
Reduced Pressure Zone Watt009 1/2in FNPT

Reduced Pressure Zone Watt009 1/2in FNPT

WATTS
$468.60 - $468.60
$468.60
$468.60 - $468.60
$468.60

Reduced Pressure Zone Assembly Series Watts 009 Size 1/2 in Connection FNPT Body Material Bronze Temp Range 33 to 180 Degrees F Max Temp 180 Degree...

View full Details
$468.60 - $468.60
$468.60
$468.60 - $468.60
$468.60
Double Check Detector 12in 53-1/8inH

Double Check Detector 12in 53-1/8inH

WATTS
$30,141.43 - $30,141.43
$30,141.43
$30,141.43 - $30,141.43
$30,141.43

Double Check Detector Assembly Series Watts 774 Size 12 in Connection Flanged Body Material Stainless Steel Temp Range 33 to 110 Degrees F Max Temp...

View full Details
$30,141.43 - $30,141.43
$30,141.43
$30,141.43 - $30,141.43
$30,141.43
Double Check Detector 774 6in ShortLayL

Double Check Detector 774 6in ShortLayL

WATTS
$8,739.69 - $8,739.69
$8,739.69
$8,739.69 - $8,739.69
$8,739.69

Double Check Detector Assembly Series Watts 774 Size 6 in Connection Flanged Body Material Stainless Steel Temp Range 33 to 110 Degrees F Max Temp ...

View full Details
$8,739.69 - $8,739.69
$8,739.69
$8,739.69 - $8,739.69
$8,739.69
Double Check Detector 774 4in 22-3/4inH

Double Check Detector 774 4in 22-3/4inH

WATTS
$7,101.20 - $7,101.20
$7,101.20
$7,101.20 - $7,101.20
$7,101.20

Double Check Detector Assembly Series Watts 774 Size 4 in Connection Flanged Body Material Stainless Steel Temp Range 33 to 110 Degrees F Max Temp ...

View full Details
$7,101.20 - $7,101.20
$7,101.20
$7,101.20 - $7,101.20
$7,101.20
Double Check Detector 774 12in Flanged

Double Check Detector 774 12in Flanged

WATTS
$30,141.43 - $30,141.43
$30,141.43
$30,141.43 - $30,141.43
$30,141.43

Double Check Detector Assembly Series Watts 774 Size 12 in Connection Flanged Body Material Stainless Steel Temp Range 33 to 110 Degrees F Max Temp...

View full Details
$30,141.43 - $30,141.43
$30,141.43
$30,141.43 - $30,141.43
$30,141.43
Double Check Detector 774 6in Flanged

Double Check Detector 774 6in Flanged

WATTS
$8,739.69 - $8,739.69
$8,739.69
$8,739.69 - $8,739.69
$8,739.69

Double Check Detector Assembly Series Watts 774 Size 6 in Connection Flanged Body Material Stainless Steel Temp Range 33 to 110 Degrees F Max Temp ...

View full Details
$8,739.69 - $8,739.69
$8,739.69
$8,739.69 - $8,739.69
$8,739.69
Double Check Detector 774 3in Flanged

Double Check Detector 774 3in Flanged

WATTS
$6,365.83 - $6,365.83
$6,365.83
$6,365.83 - $6,365.83
$6,365.83

Double Check Detector Assembly Series Watts 774 Size 3 in Connection Flanged Body Material Stainless Steel Temp Range 33 to 110 Degrees F Max Temp ...

View full Details
$6,365.83 - $6,365.83
$6,365.83
$6,365.83 - $6,365.83
$6,365.83

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare