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

292 Products

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

1 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves and Flood Sensor
Part #WLF009M2QTFSG
Item #9880569
Mfr. Part #88004112
3.2 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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,
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How to get it:
  • Pick Up
    2  Available
    Available Nearby
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    Not available in 'OH'
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    Shipping Not Available
    Not available in 'OH'
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

  • Lead Law Compliant

 Points
EACH
Requires Certification
Your product has been successfully added to the list
Your products have been successfully added to the list
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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

  • Lead Law Compliant

 Points
EACH
Requires Certification
Your product has been successfully added to the list
Your products have been successfully added to the list
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    2  Available
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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

  • Lead Law Compliant

 Points
EACH
Requires Certification
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:
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    1  Available
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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

  • Not Compliant, Approved for Non-Potable Water Applications

 Points
EACH
Requires Certification
Your product has been successfully added to the list
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    2  Available
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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

  • Lead Law Compliant

 Points
EACH
Requires Certification
Your product has been successfully added to the list
Your products have been successfully added to the list
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Your products have been successfully added to the new list you created,
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How to get it:
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    2  Available
    Available Nearby
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1/2 in. Forged Brass Union Dual Check Valve with Intermediate Atmospheric Vent
Watts Series LF9D

1/2 in. Forged Brass Union Dual Check Valve with Intermediate Atmospheric Vent
Part #WLF9DD
Item #8431764
Mfr. Part #88006822
4 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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,
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How to get it:
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    2  Available
    Available Nearby
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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

  • Lead Law Compliant

 Points
EACH
Requires Certification
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:
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    1  Available
    0 nearby
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    Not available in 'OH'
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    Not Available
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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

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    1  Available
    Available Nearby
    Pick Up  Not Available
    Not available in 'OH'
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    Available
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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

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    1  Available
    Available Nearby
    Pick Up  Not Available
    Not available in 'OH'
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    Available
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    Not available in 'OH'
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

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    3  Available
    Available Nearby
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
3/4 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves, Strainer and Flood Sensor
Watts Series LF009

3/4 in. Cast Copper Silicon Alloy FPT Reduced Pressure Zone Assembly with Quarter Turn Shutoff Valves, Strainer and Flood Sensor
Part #WLF009M3QTSFSF
Item #9894561
Mfr. Part #88004089
3.9 out of 5 Customer Rating
  • Requires Certification

Points
EACH
Requires Certification
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
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
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 #W975XL2SAGK
Item #4570591
Mfr. Part #2-975XL2SAG
4.8 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
3/8 in. Stainless Steel MPT Dual Check Valve with Atmospheric Vent and Strainer
Watts Model SD-3

3/8 in. Stainless Steel MPT Dual Check Valve with Atmospheric Vent and Strainer
Part #WSD3MFC
Item #1222720
Mfr. Part #0061657
4.3 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    3  Available
    Available Nearby
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
3/4 Cast Copper Silicon Alloy FPT Double Check Valve Assembly with Freeze Sensor and Quarter-Turn Ball Valve
Watts LF007 Series

3/4 Cast Copper Silicon Alloy FPT Double Check Valve Assembly with Freeze Sensor and Quarter-Turn Ball Valve
Part #WLF007M3QTFZF
Item #10248757
Mfr. Part #T063231
4.9 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    1  Available
    Available Nearby
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
3 in. Stainless Steel Flanged 350 psi Backflow Preventer
Zurn Wilkins Model 375AST

3 in. Stainless Steel Flanged 350 psi Backflow Preventer
Part #W375ASTOSYM
Item #4239649
Mfr. Part #3-375ASTOSY
4.4 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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).
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
3 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins 375A

3 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W375AM
Item #4297140
Mfr. Part #3-375A
3.4 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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).
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'OH'
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

  • Lead Law Compliant

 Points
EACH
Requires Certification
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).
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'OH'
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

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
4 in Stainless Steel Grooved Double Check Valve Assembly
Ames Fire & Waterworks C200

4 in Stainless Steel Grooved Double Check Valve Assembly
Part #AC200BFGP
Item #2432914
Mfr. Part #0191224
4.2 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
2-1/2 in. Epoxy Coated Ductile Iron Flanged x Grooved 175 psi Backflow Preventer
Zurn Wilkins Model 375

2-1/2 in. Epoxy Coated Ductile Iron Flanged x Grooved 175 psi Backflow Preventer
Part #W375OSYL
Item #1670251
Mfr. Part #212-375OSY
4.9 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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).
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
2-1/2 in. Stainless Steel Flanged 175 psi Backflow Preventer
Watts Series 957-FS

2-1/2 in. Stainless Steel Flanged 175 psi Backflow Preventer
Part #W957NRSFSL
Item #9997630
Mfr. Part #F111602
5 out of 5 Customer Rating
  • Requires Certification

Points
EACH
Requires Certification
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).
Log in or Create an Account to see product availability.
How to get it:
  • Pick Up
    0  Available
    0 nearby
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
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

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'
3/4 in. Forged Brass Union Dual Check Valve with Intermediate Atmospheric Vent
Watts Series LF9D

3/4 in. Forged Brass Union Dual Check Valve with Intermediate Atmospheric Vent
Part #WLF9DF
Item #8431761
Mfr. Part #88006832
3.7 out of 5 Customer Rating
  • Requires Certification

  • Lead Law Compliant

 Points
EACH
Requires Certification
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
    2  Available
    Available Nearby
    Pick Up  Not Available
    Not available in 'OH'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'OH'