Reduced Pressure Detector Assembly 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.

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Reduced Pressure Detector Assembly Reduced Pressure Detector Assembly
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24 Products

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24 Products
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8 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins 375ADA

8 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W375ADALFX
Item #4802339
Mfr. Part #8-375ADA
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,
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How to get it:
  • Pick Up
    0  Available
    0 nearby
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    Not available in 'VA'
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    Shipping Not Available
    Not available in 'VA'
8 in. Stainless Steel Flanged 350 psi Backflow Preventer
Zurn Wilkins Model 375ASTDA

8 in. Stainless Steel Flanged 350 psi Backflow Preventer
Part #W375ASTDAX
Item #5149402
Mfr. Part #8-375ASTDA
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,
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How to get it:
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    0  Available
    0 nearby
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    Not available in 'VA'
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    Available
    Shipping Not Available
    Not available in 'VA'
3 in. 304 Stainless Steel Flanged Backflow Preventer
Ames Fire & Waterworks Series C500-FS

3 in. 304 Stainless Steel Flanged Backflow Preventer
Part #AC500OSYGFSM
Item #10039302
Mfr. Part #F0191313
3.3 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,
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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 'VA'
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    Shipping Not Available
    Not available in 'VA'
4 in. Ductile Iron Flanged 350 psi Backflow Preventer
FEBCO MasterSeries® LF866-FS

4 in. Ductile Iron Flanged 350 psi Backflow Preventer
Part #FLF866DOSYGPMFSP
Item #10001068
Mfr. Part #F683166
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).
Log in or Create an Account to see product availability.
How to get it:
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    0  Available
    0 nearby
    Pick Up  Not Available
    Not available in 'VA'
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    Shipping Not Available
    Not available in 'VA'
8 in. Stainless Steel Flanged Backflow Preventer
Apollo Valves RPDALF4A Series

8 in. Stainless Steel Flanged Backflow Preventer
Part #A4ALF70EE3
Item #4581258
Mfr. Part #4ALF70EE3
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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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 'VA'
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    Shipping Not Available
    Not available in 'VA'
6 in. 304 Stainless Steel Flanged x Flanged x Barbed Backflow Preventer
Ames Fire & Waterworks Series C500-FS

6 in. 304 Stainless Steel Flanged x Flanged x Barbed Backflow Preventer
Part #AC500OSYGFSU
Item #10039304
Mfr. Part #F0191315
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,
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How to get it:
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    0  Available
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    Not available in 'VA'
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    Shipping Not Available
    Not available in 'VA'
6 in. Epoxy Coated Stainless Steel Flanged 175 psi Backflow Preventer
Zurn Wilkins Model 375ASTDA

6 in. Epoxy Coated Stainless Steel Flanged 175 psi Backflow Preventer
Part #W375ASTDALFU
Item #4801762
Mfr. Part #6-375ASTDA
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).
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 'VA'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'VA'
10 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins 375DA

10 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W375DALF10
Item #4801886
Mfr. Part #10-375DA
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).
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How to get it:
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    Not available in 'VA'
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    Not available in 'VA'
6 in. Cast Iron Mechanical Joint Backflow Preventer
Watts Series 909RPDA

6 in. Cast Iron Mechanical Joint Backflow Preventer
Part #W909RPDAOSYGPMFS6U
Item #9776576
Mfr. Part #88009323
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,
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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 'VA'
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    Not Available
    Shipping Not Available
    Not available in 'VA'
8 in. Stainless Steel Flanged Backflow Preventer
Ames Fire & Waterworks M500

8 in. Stainless Steel Flanged Backflow Preventer
Part #AM500OSYGPMX
Item #5059281
Mfr. Part #0191120
3.7 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
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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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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
4 in 304 Stainless Steel Grooved Reduced Pressure Detector Assembly with Shutoff Valves, Water Meter and Test Cocks
Ames Fire & Waterworks Deringer 50/50G

4 in 304 Stainless Steel Grooved Reduced Pressure Detector Assembly with Shutoff Valves, Water Meter and Test Cocks
Part #AD4050GPM
Item #8455362
Mfr. Part #D-4050-GPM
4 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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
10 in. 304L Stainless Steel Flanged OS&Y Body Sprinkler Valve
Zurn Wilkins Model 475STDA

10 in. 304L Stainless Steel Flanged OS&Y Body Sprinkler Valve
Part #W475STDA10
Item #7566940
Mfr. Part #10-475STDA
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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
6 in. Ductile Iron Flanged 350 psi Backflow Preventer
Zurn Wilkins Model 475DAV

6 in. Ductile Iron Flanged 350 psi Backflow Preventer
Part #W475DAVLFU
Item #4801985
Mfr. Part #6-475DAV
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).
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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
4 in. Stainless Steel Flanged Reduced Pressure Detector Assembly
Ames Fire & Waterworks SilverBullet™ Series 5000SS-FS

4 in. Stainless Steel Flanged Reduced Pressure Detector Assembly
Part #A5000SSOSYGPMFSP
Item #10039240
Mfr. Part #F0690545
4.4 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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
6 in. 300 Stainless Steel Flanged Backflow Preventer
Ames Fire & Waterworks Series 5000SS

6 in. 300 Stainless Steel Flanged Backflow Preventer
Part #A5000SSOSYGPMFSU
Item #10039241
Mfr. Part #F0690548
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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
4 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins Model 475DA

4 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W475DALFP
Item #4802119
Mfr. Part #4-475DA
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).
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 'VA'
  • Shipping
    Available
    Shipping Not Available
    Not available in 'VA'
2-1/2 in 304 Stainless Steel Grooved Reduced Pressure Detector Assembly with Shutoff Valves
Ames Fire & Waterworks Deringer™ 50

2-1/2 in 304 Stainless Steel Grooved Reduced Pressure Detector Assembly with Shutoff Valves
Part #AD2050KGPM
Item #8693548
Mfr. Part #D-2050K-GPM
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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
4 in. Epoxy Coated Stainless Steel Flanged 175 psi Backflow Preventer
Zurn Wilkins Model 375ASTDA

4 in. Epoxy Coated Stainless Steel Flanged 175 psi Backflow Preventer
Part #W375ASTDALFP
Item #4801743
Mfr. Part #4-375ASTDA
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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
8 in. Stainless Steel Reduced Pressure Detector Assembly with OS and Y Gate Shuttoffs, Water Meter and Floor Sensor
Ames Fire & Waterworks Series C500

8 in. Stainless Steel Reduced Pressure Detector Assembly with OS and Y Gate Shuttoffs, Water Meter and Floor Sensor
Part #AC500OSYGFSX
Item #10039305
Mfr. Part #F0191316
3.6 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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
8 in. Stainless Steel Flanged 350 psi Backflow Preventer
Zurn Wilkins 375ASTDA

8 in. Stainless Steel Flanged 350 psi Backflow Preventer
Part #W375ASTDASTX
Item #4336220
Mfr. Part #8-375ASTDAST
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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
3in. Stainless Steel Reduced Pressure Detector Assembly with OS&Y Gate Valves, Water Meter and Flood Sensor
Watts Series 994RPDA

3in. Stainless Steel Reduced Pressure Detector Assembly with OS&Y Gate Valves, Water Meter and Flood Sensor
Part #W994RPDAOSYGPMFSM
Item #10001437
Mfr. Part #F438253
4.1 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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
6 in. Stainless Steel Grooved Backflow Preventer
Watts LF957RPDA-FS Series

6 in. Stainless Steel Grooved Backflow Preventer
Part #WF122727
Item #10001450
Mfr. Part #F122727
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).
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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
8 in. Stainless Steel Reduced Pressure Detector Assembly with OS&Y Valves, Water Meter and Flood Sensor
Ames Fire & Waterworks Series C500

8 in. Stainless Steel Reduced Pressure Detector Assembly with OS&Y Valves, Water Meter and Flood Sensor
Part #AC500OSYCFSX
Item #10039299
Mfr. Part #F0191310
3.8 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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'
8 in. Stainless Steel Grooved Backflow Preventer
Ames Fire & Waterworks Deringer 50/50G

8 in. Stainless Steel Grooved Backflow Preventer
Part #AD8050CFM
Item #8455329
Mfr. Part #D-8050-CFM
3.3 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 'VA'
  • Shipping
    Not Available
    Shipping Not Available
    Not available in 'VA'