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

340 Products

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340 Products
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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
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

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

1 in Bronze FPT Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Part #W975XL2G
Item #3908913
Mfr. Part #1-975XL2
4 out of 5 Customer Rating
Requires Certification

Points
EACH
Your product has been successfully added to the list
Your products have been successfully added to the list
Your product has been successfully added to the new list you created,
Your products have been successfully added to the new list you created,
You've reached more than half the max number of items allowed in a list (>250/500).
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
EACH
How to get it:
  • Requires Certification

  • Not Compliant, Approved for Non-Potable Water Applications

2 in Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter-Turn Ball Valves and Flood Sensor
Watts LF919 Series

2 in Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter-Turn Ball Valves and Flood Sensor
Part #WLF919QTFSK
Item #10135572
Mfr. Part #F065376
3.9 out of 5 Customer Rating
Requires Certification

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

  • Lead Law Compliant

3/4 in. Cast Bronze Flanged 350 psi Double Check Valve Backflow Preventer
Zurn Wilkins 350XL

3/4 in. Cast Bronze Flanged 350 psi Double Check Valve Backflow Preventer
Part #W350XLF
Item #3908891
Mfr. Part #34-350XL
5 out of 5 Customer Rating
Requires Certification

Points
EACH
Your product has been successfully added to the list
Your products have been successfully added to the list
Your product has been successfully added to the new list you created,
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How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

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
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

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

1 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves, Strainer and Flood Sensor
Part #WLF009M2QTSFSG
Item #9888830
Mfr. Part #88004088
5 out of 5 Customer Rating
Requires Certification

Points
EACH
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification
3/4 in Reinforced Nylon Flanged Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Zurn Wilkins 375XL

3/4 in Reinforced Nylon Flanged Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Part #W375XLF
Item #3908791
Mfr. Part #34-375XL
4.4 out of 5 Customer Rating
Requires Certification

Points
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

1/2 in Bronze FPT Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Zurn Wilkins 975XL2

1/2 in Bronze FPT Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Part #W975XL2SAGD
Item #4570461
Mfr. Part #12-975XL2SAG
3.4 out of 5 Customer Rating
Requires Certification

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

  • Lead Law Compliant

2 in. Cast Copper Silicon Alloy MPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves, Strainer and Flood Sensor
Watts Series LF909

2 in. Cast Copper Silicon Alloy MPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves, Strainer and Flood Sensor
Part #WLF909M1QTSFSK
Item #10024588
Mfr. Part #F122767
4.3 out of 5 Customer Rating
Requires Certification

Points
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
EACH
Your product has been successfully added to the list
Your products have been successfully added to the list
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You've reached more than half the max number of items allowed in a list (>250/500).
Out of Stock
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Not Available
  • Requires Certification

  • Lead Law Compliant, Not Certified

4 in 304 Stainless Steel Grooved Double Check Valve Assembly with Shutoff Valves and Test Cocks
Ames Fire & Waterworks Deringer 20/20G

4 in 304 Stainless Steel Grooved Double Check Valve Assembly with Shutoff Valves and Test Cocks
Part #AD4020
Item #8455326
Mfr. Part #D-4020
4 out of 5 Customer Rating
Requires Certification

Points
EACH
Out of Stock
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Not Available
  • Requires Certification
2 in Bronze FPT Double Check Valve Assembly with Quarter-Turn Ball Valves
Zurn Wilkins 950XLT2

2 in Bronze FPT Double Check Valve Assembly with Quarter-Turn Ball Valves
Part #W950XLT2K
Item #3908884
Mfr. Part #2-950XLT2
4.7 out of 5 Customer Rating
Requires Certification

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

  • Lead Law Compliant

1 in x 3/4 in Copper Silicon Alloy FPT x Union Double Check Valve
Watts Series LF7R

1 in x 3/4 in Copper Silicon Alloy FPT x Union Double Check Valve
Part #WLF7R10U3GF
Item #4525709
Mfr. Part #0072208
5 out of 5 Customer Rating
Requires Certification

Points
EACH
Your product has been successfully added to the list
Your products have been successfully added to the list
Your product has been successfully added to the new list you created,
Your products have been successfully added to the new list you created,
You've reached more than half the max number of items allowed in a list (>250/500).
How to get it:
  • Requires Certification

  • Lead Law Compliant

3/4 in Bronze FPT Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Zurn Wilkins Model 975XL

3/4 in Bronze FPT Reduced Pressure Principle Assembly with Quarter-Turn Ball Valves
Part #W975XL3F
Item #9753819
Mfr. Part #34-975XL3
3.9 out of 5 Customer Rating
Requires Certification

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

  • Lead Law Compliant

3/4 in Bronze FPT Dual Check Valve
Zurn Wilkins 700XL

3/4 in Bronze FPT Dual Check Valve
Part #WUFX34F700XLF
Item #3908843
Mfr. Part #34UFX34F-700XL
5 out of 5 Customer Rating
Requires Certification

Points
EACH
Your product has been successfully added to the list
Your products have been successfully added to the list
Your product has been successfully added to the new list you created,
Your products have been successfully added to the new list you created,
You've reached more than half the max number of items allowed in a list (>250/500).
How to get it:
  • Requires Certification

  • Lead Law Compliant

1/2 in Brass FPT Dual Check Valve
Caleffi North America AutoFill™

1/2 in Brass FPT Dual Check Valve
Part #C573403A
Item #3810712
Mfr. Part #573403A
4.9 out of 5 Customer Rating
Requires Certification

Points
EACH
Your product has been successfully added to the list
Your products have been successfully added to the list
Your product has been successfully added to the new list you created,
Your products have been successfully added to the new list you created,
You've reached more than half the max number of items allowed in a list (>250/500).
Out of Stock
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Not Available
  • Requires Certification
3/8 in. Cast Copper Silicon Alloy FPT Dual Check Valve
Watts Series LF7

3/8 in. Cast Copper Silicon Alloy FPT Dual Check Valve
Part #WLF7C
Item #3953637
Mfr. Part #0792076
3.3 out of 5 Customer Rating
Requires Certification

Points
EACH
How to get it:
  • Requires Certification

  • Lead Law Compliant

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

1 in. Bronze FPT Double Check Valve Assembly with Quarter Turn Shutoff Valves and Freeze Senser
Part #WLF007M1QTFZG
Item #10248762
Mfr. Part #T063232
3.5 out of 5 Customer Rating
Requires Certification

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

  • Lead Law Compliant

1/2 x 1/2 in. Bronze Union Sweat x Socket Weld Dual Check Valve with Atmospheric Vent
Watts Series 9D

1/2 x 1/2 in. Bronze Union Sweat x Socket Weld Dual Check Valve with Atmospheric Vent
Part #W9DSM3D
Item #543292
Mfr. Part #0061952
4.4 out of 5 Customer Rating
Requires Certification

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

  • Not Compliant, Approved for Non-Potable Water Applications

3/8 in Plastic MPT Backflow Preventer
Apollo Valves 4C-100 Series

3/8 in Plastic MPT Backflow Preventer
Part #A4C10202A
Item #8962273
Mfr. Part #4C10202A
4.4 out of 5 Customer Rating
Requires Certification

Points
EACH
Your product has been successfully added to the list
Your products have been successfully added to the list
Your product has been successfully added to the new list you created,
Your products have been successfully added to the new list you created,
You've reached more than half the max number of items allowed in a list (>250/500).
How to get it:
  • Pick Up
    0  Available
    0 nearby
  • Shipping
    Available
  • Requires Certification

  • Lead Law Compliant

6 in. Epoxy Coated Ductile Iron Flanged 350 psi Backflow Preventer
Zurn Wilkins Model 310

6 in. Epoxy Coated Ductile Iron Flanged 350 psi Backflow Preventer
Part #W3101INCHU
Item #4708221
Mfr. Part #6-310-1INCH
3.1 out of 5 Customer Rating
Requires Certification

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

  • Lead Law Compliant