Backflow Preventers

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Safe Water Starts with Prevention

Shop high-quality backflow prevention products engineered to ensure clean, safe water in every system.

Popular Backflow Preventer Types

Reduced Pressure Zone Assembly Reduced Pressure Zone Assembly
Reduced Pressure Detector Assembly Reduced Pressure Detector Assembly
Double Check Detector Assembly Double Check Detector Assembly
Double Check Valve Assembly Double Check Valve Assembly

Shop Valve Accessories, Repair Kits & Parts

Valve Repair Kits Valve Repair Kits
Valve Repair Parts Valve Repair Parts
Vacuum Breakers Vacuum Breakers
Replacement Handles Replacement Handles

Popular Backflow Preventer Brands

391 Products

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391 Products
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2 in Bronze FPT Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Zurn Wilkins 975XL2

2 in Bronze FPT Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Part #W975XL2K
Item #3908829
Mfr. Part #2-975XL2
3.6 out of 5 Customer Rating
Requires Certification

Points
$2,107.99
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

2 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves and Flood Sensor
Watts Series LF009

2 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves and Flood Sensor
Part #WLF009M2QTFSK
Item #9880568
Mfr. Part #88004115
5 out of 5 Customer Rating
Requires Certification

Points
$1,699.24
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

1/2 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves and Flood Sensor
Watts Series LF009

1/2 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves and Flood Sensor
Part #WLF009QTFSD
Item #9880567
Mfr. Part #88004110
5 out of 5 Customer Rating
Requires Certification

Points
$555.07
EACH
How to get it:
  • Pick Up
    2  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

2 in. Bronze FPT Double Check Valve Assembly with Quarter Turn Shutoff Valves and Freeze Senser
Watts LF007 Series

2 in. Bronze FPT Double Check Valve Assembly with Quarter Turn Shutoff Valves and Freeze Senser
Part #WLF007M1QTFZK
Item #10248764
Mfr. Part #T063235
5 out of 5 Customer Rating
Requires Certification

Points
$1,215.48
EACH
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

1 in. Brass FPT Dual Check Valve
Watts Series LF07S

1 in. Brass FPT Dual Check Valve
Part #WLF07SG
Item #4321425
Mfr. Part #0122588
3.8 out of 5 Customer Rating
Requires Certification

Points
$566.29
EACH
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant, Not Certified

3/4 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves and Flood Sensor
Watts Series LF009

3/4 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves and Flood Sensor
Part #WLF009M3QTFSF
Item #9880565
Mfr. Part #88004111
5 out of 5 Customer Rating
Requires Certification

Points
$738.73
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

1/2 in Brass Union Double Check Valve with Strainer
Watts Series 9D

1/2 in Brass Union Double Check Valve with Strainer
Part #W9DM3D
Item #35572
Mfr. Part #0061935
4.3 out of 5 Customer Rating
Requires Certification

Points
$279.87
EACH
How to get it:
  • Requires Certification

  • Not Compliant, Approved for Non-Potable Water Applications

1 in. Cast Brass Flanged 175 psi Double Check Valve Backflow Preventer
Zurn Wilkins 350XL

1 in. Cast Brass Flanged 175 psi Double Check Valve Backflow Preventer
Part #W350XLG
Item #3908842
Mfr. Part #1-350XL
4.1 out of 5 Customer Rating
Requires Certification

Points
$468.99
EACH
How to get it:
  • Pick Up
    1  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

3/4 in. x 3/4 in. Brass Union x FPT Dual Check Valve
Watts Series LF7R

3/4 in. x 3/4 in. Brass Union x FPT Dual Check Valve
Part #WLF7RU22F
Item #4378312
Mfr. Part #0072204
4.5 out of 5 Customer Rating
Requires Certification

Points
$112.20
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

8 in. Ductile Iron Flanged 350 psi Backflow Preventer
Zurn Wilkins Model 350ASTDA

8 in. Ductile Iron Flanged 350 psi Backflow Preventer
Part #W350ASTDAX
Item #4719911
Mfr. Part #8-350ASTDA
5 out of 5 Customer Rating
Requires Certification

Points
$18,772.99
EACH
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

8 in. 304 Stainless Steel Flanged 175 psi Backflow Preventer
Watts Series LF757DCDA

8 in. 304 Stainless Steel Flanged 175 psi Backflow Preventer
Part #WLF757DCDAOSYGPMX
Item #4525229
Mfr. Part #0122718
5 out of 5 Customer Rating
Requires Certification

Points
$24,271.20
EACH
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How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

8 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins 350DA

8 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W350DALFX
Item #4802238
Mfr. Part #8-350DA
3.4 out of 5 Customer Rating
Requires Certification

Points
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How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Not Available
  • Requires Certification

  • Lead Law Compliant

1 in Reinforced Nylon Flanged Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Zurn Wilkins 375XL

1 in Reinforced Nylon Flanged Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Part #W375XLG
Item #3908875
Mfr. Part #1-375XL
4.7 out of 5 Customer Rating
Requires Certification

Points
$936.99
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

1 x 3/4 in. Brass FPT x Union Dual Check Valve
Watts Series LF7R

1 x 3/4 in. Brass FPT x Union Dual Check Valve
Part #WLF7R10U2GF
Item #4525703
Mfr. Part #0072207
5 out of 5 Customer Rating
Requires Certification

Points
$161.00
EACH
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

1-1/2 in. Cast Copper Silicon Alloy Double Check Valve Assembly with Quarter Turn Shutoff Valves and Freeze Sensor
Watts LF007 Series

1-1/2 in. Cast Copper Silicon Alloy Double Check Valve Assembly with Quarter Turn Shutoff Valves and Freeze Sensor
Part #WLF007M2QTFZJ
Item #10248766
Mfr. Part #T063234
4.9 out of 5 Customer Rating
Requires Certification

Points
$1,074.30
EACH
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

2 in Copper Silicon Alloy MPT Reduced Pressure Zone Assembly with Quarter-Turn Ball Valves and Flood Sensor
Watts Series LF909

2 in Copper Silicon Alloy MPT Reduced Pressure Zone Assembly with Quarter-Turn Ball Valves and Flood Sensor
Part #WLF909M1QTFSK
Item #10024585
Mfr. Part #F391012
5 out of 5 Customer Rating
Requires Certification

Points
$4,548.68
EACH
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

6 in. Stainless Steel Flanged 175 psi Backflow Preventer
Ames Fire & Waterworks Series 3000SS

6 in. Stainless Steel Flanged 175 psi Backflow Preventer
Part #A3000SSOSYGPMU
Item #2150666
Mfr. Part #0690503
5 out of 5 Customer Rating
Requires Certification

Points
$12,584.15
EACH
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Not Available
  • Requires Certification

  • Not Compliant, Approved for Non-Potable Water Applications

6 in. Ductile Iron Flanged 350 psi Backflow Preventer
Zurn Wilkins Model 350ASTDA

6 in. Ductile Iron Flanged 350 psi Backflow Preventer
Part #W350ASTDALFU
Item #4802176
Mfr. Part #6-350ASTDA
4.5 out of 5 Customer Rating
Requires Certification

Points
$10,668.99
EACH
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

4 in. Cast Iron Flanged 175 psi Backflow Preventer
Watts Series LF909-FS

4 in. Cast Iron Flanged 175 psi Backflow Preventer
Part #WLF909NRSFSP
Item #9771989
Mfr. Part #88009303
5 out of 5 Customer Rating
Requires Certification

Points
$18,341.29
EACH
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Not Available
  • Requires Certification

  • Lead Law Compliant

2-1/2 in. Stainless Steel Flanged Backflow Preventer
Watts Series 757

2-1/2 in. Stainless Steel Flanged Backflow Preventer
Part #W757OSYL
Item #1845375
Mfr. Part #0111510
4 out of 5 Customer Rating
Requires Certification

Points
$3,769.88
EACH
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

2 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves, Strainer and Flood Sensor
Watts Series LF009

2 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves, Strainer and Flood Sensor
Part #WLF009M2QTSFSK
Item #9894568
Mfr. Part #88004087
4.6 out of 5 Customer Rating
Requires Certification

Points
$2,061.00
EACH
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification
6 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins 375DA

6 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W375DALFU
Item #4802100
Mfr. Part #6-375DA
3.2 out of 5 Customer Rating
Requires Certification

Points
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How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

3/8 in. Stainless Steel FPT Dual Check Valve with Atmospheric Vent and Strainer
Watts Series SD-3

3/8 in. Stainless Steel FPT Dual Check Valve with Atmospheric Vent and Strainer
Part #WSD3FNC
Item #2980261
Mfr. Part #0061667
4.5 out of 5 Customer Rating
Requires Certification

Points
$661.23
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

3 in. Cast Iron Flanged 175 psi Backflow Preventer
Watts Series LF909-FS

3 in. Cast Iron Flanged 175 psi Backflow Preventer
Part #WLF909OSYFSM
Item #9771992
Mfr. Part #88009304
5 out of 5 Customer Rating
Requires Certification

Points
$15,654.84
EACH
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Not Available
  • Requires Certification

  • Lead Law Compliant

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1–6 of 18 items
2 in. x 20 ft. Schedule 40 PVC Foam Core Pipe

2 in. x 20 ft. Schedule 40 PVC Foam Core Pipe
Part #P40FCPK20
Item #117119
5 out of 5 Customer Rating
Requires Certification

Points
$12.01
per 20 FOOT
6 in x 60 in 30 ga Galvanized Steel Round Duct Pipe

6 in x 60 in 30 ga Galvanized Steel Round Duct Pipe
Part #SHMP30US
Item #3081208
4.9 out of 5 Customer Rating
Requires Certification

Points
$10.70
EACH
2 in. Zinc Epoxy Plated Swivel Ring Hanger
FNW® Figure 7010E

2 in. Zinc Epoxy Plated Swivel Ring Hanger
Part #FNW7010EP0200
Item #3859976
5 out of 5 Customer Rating
Requires Certification

Points
$1.63
EACH
1/2 in. Barbed Plastic Half Pipe Clamp with Preloaded Nail
PROFLO®

1/2 in. Barbed Plastic Half Pipe Clamp with Preloaded Nail
Part #PF34240
Item #760243
4.1 out of 5 Customer Rating
Requires Certification

Points
$0.15
EACH
8 in. Galvanized Steel Saddle in Round Duct

8 in. Galvanized Steel Saddle in Round Duct
Part #SHMASTOX
Item #3346567
4.1 out of 5 Customer Rating
Requires Certification

Points
$10.34
EACH
2 in. PVC DWV 45° Elbow

2 in. PVC DWV 45° Elbow
Part #PDWV4K
Item #495
3.3 out of 5 Customer Rating
Requires Certification

Points
$3.52
EACH
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