Reduced Pressure Detector Assembly Backflow Preventers

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FNW® Adjustable Pipe Stands

Get high-quality support for pipe, valves and backflow preventers.

Popular Backflow Preventer Brands

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

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37 Products
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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

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification

  • Lead Law Compliant

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
$1
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification
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

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification

  • Lead Law Compliant

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

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Available for immediate shipment
  • Requires Certification

  • Lead Law Compliant

8 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins Model 475DA

8 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W475DALFX
Item #4802139
Mfr. Part #8-475DA
3.4 out of 5 Customer Rating
Requires Certification

Points
$1
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  • Pick Up: Not available
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  • Requires Certification

  • Lead Law Compliant

8 in. 304L Stainless Steel Flanged OS&Y Body Sprinkler Valve
Zurn Wilkins Model 475STDA

8 in. 304L Stainless Steel Flanged OS&Y Body Sprinkler Valve
Part #W475STDAX
Item #7566984
Mfr. Part #8-475STDA
3.2 out of 5 Customer Rating
Requires Certification

Points
$1
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  • Pick Up: Not available
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  • Requires Certification

  • Lead Law Compliant

3 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins 375DA

3 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W375DALFM
Item #4802077
Mfr. Part #3-375DA
4.5 out of 5 Customer Rating
Requires Certification

Points
$1
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification

  • Lead Law Compliant

6 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins 375ADA

6 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W375ADAU
Item #2192735
Mfr. Part #6-375ADA
5 out of 5 Customer Rating
Requires Certification

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification

  • Not Compliant, Approved for Non-Potable Water Applications

4 in. Stainless Steel Grooved 350 psi Backflow Preventer
Zurn Wilkins Model 375ASTDA

4 in. Stainless Steel Grooved 350 psi Backflow Preventer
Part #W375ASTDABGP
Item #4876826
Mfr. Part #4-375ASTDABG
5 out of 5 Customer Rating
Requires Certification

Points
$1
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification

  • Lead Law Compliant

8 in. Cast Iron Mechanical Joint Reduced Pressure Detector Assembly
Watts Series 909RPDA

8 in. Cast Iron Mechanical Joint Reduced Pressure Detector Assembly
Part #W909RPDAOSYGPMFS8X
Item #9776537
Mfr. Part #88009321
5 out of 5 Customer Rating
Requires Certification

Points
$1
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  • Requires Certification
2-1/2 in. 304 Stainless Steel Flanged Backflow Preventer
Ames Fire & Waterworks LFC500-FS Series

2-1/2 in. 304 Stainless Steel Flanged Backflow Preventer
Part #ALFC500ZOSYCFSL
Item #10039359
Mfr. Part #F0124653
3.5 out of 5 Customer Rating
Requires Certification

Points
$1
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  • Pick Up: Not available
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  • Requires Certification

  • Lead Law Compliant

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
$1
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification
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

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification

  • Lead Law Compliant

6 in. 304 Stainless Steel Flanged Backflow Preventer
Ames Fire & Waterworks Series C500-FS

6 in. 304 Stainless Steel Flanged Backflow Preventer
Part #AC500OSYCFSU
Item #10039298
Mfr. Part #F0191309
5 out of 5 Customer Rating
Requires Certification

Points
$1
EACH
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  • Pick Up: Not available
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  • Requires Certification
4 in. 304 Stainless Steel Flanged Backflow Preventer
Ames Fire & Waterworks Series C500-FS

4 in. 304 Stainless Steel Flanged Backflow Preventer
Part #AC500OSYGFSP
Item #10039303
Mfr. Part #F0191314
4.4 out of 5 Customer Rating
Requires Certification

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Available for immediate shipment
  • Requires Certification
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
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification
4 in. Ductile Iron, Plastic, Rubber, Stainless Steel Grooved 350 psi Backflow Preventer
Zurn Wilkins Model 475DAV

4 in. Ductile Iron, Plastic, Rubber, Stainless Steel Grooved 350 psi Backflow Preventer
Part #W475DAVBGP
Item #7341773
Mfr. Part #4-475DAVBG
5 out of 5 Customer Rating
Requires Certification

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification

  • Lead Law Compliant

8 in. 304 Stainless Steel Flanged Backflow Preventer
Ames Fire & Waterworks Deringer 50/50G

8 in. 304 Stainless Steel Flanged Backflow Preventer
Part #AD8050GCFM
Item #8455339
Mfr. Part #D-8050G-CFM
4.4 out of 5 Customer Rating
Requires Certification

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification
6 in. 304 Stainless Steel Flanged Backflow Preventer
Ames Fire & Waterworks Deringer 50X/50GX

6 in. 304 Stainless Steel Flanged Backflow Preventer
Part #AD6050GXLM
Item #8455328
Mfr. Part #D-6050GX-LM
5 out of 5 Customer Rating
Requires Certification

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification
2 in. Bronze Grooved Backflow Preventer
Ames Fire & Waterworks Deringer™ 50

2 in. Bronze Grooved Backflow Preventer
Part #AD2050KGPM
Item #8693548
Mfr. Part #D-2050K-GPM
5 out of 5 Customer Rating
Requires Certification

Points
$1
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  • Pick Up: Not available
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  • Requires Certification
8 in. 304 Stainless Steel IPS Grooved Backflow Preventer
Ames Fire & Waterworks Deringer 50/50G

8 in. 304 Stainless Steel IPS Grooved Backflow Preventer
Part #AD8050LM
Item #8455321
Mfr. Part #D-8050-LM
4.5 out of 5 Customer Rating
Requires Certification

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification
3 in. 304 Stainless Steel Flanged Backflow Preventer
Ames Fire & Waterworks Deringer 50/50G

3 in. 304 Stainless Steel Flanged Backflow Preventer
Part #AD3050GLM
Item #8455344
Mfr. Part #D-3050G-LM
4 out of 5 Customer Rating
Requires Certification

Points
$1
EACH
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  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification
4 in. Stainless Steel Grooved Backflow Preventer
Ames Fire & Waterworks Deringer 50/50G

4 in. Stainless Steel Grooved Backflow Preventer
Part #AD4050GPM
Item #8455362
Mfr. Part #D-4050-GPM
4 out of 5 Customer Rating
Requires Certification

Points
$1
EACH
Out of Stock
  • Pick Up: Not available
  • Shipping: Not available
  • Requires Certification
2 in. Bronze Grooved Backflow Preventer
Ames Fire & Waterworks Deringer™ 50

2 in. Bronze Grooved Backflow Preventer
Part #AD2050KCFM
Item #8693550
Mfr. Part #D-2050K-CFM
3.3 out of 5 Customer Rating
Requires Certification

Points
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  • Pick Up: Not available
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  • Requires Certification
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3/8 in. Cast Copper Silicon Alloy FPT Dual Check Valve
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1/2 in. Bronze Union FNPT x Union Backflow Preventer
Watts Series 9D

1/2 in. Bronze Union FNPT x Union Backflow Preventer
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3/4 in. Cast Bronze Union FNPT x FNPT 175 psi Backflow Preventer
Zurn Wilkins 700XL

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3/8 in. Stainless Steel FPT Dual Check Valve
Watts Model SD-2

3/8 in. Stainless Steel FPT Dual Check Valve
Part #WSD2FN
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4.8 out of 5 Customer Rating
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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
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4 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Zurn Wilkins 375A

4 in. Epoxy Coated Ductile Iron Flanged 175 psi Backflow Preventer
Part #W375AP
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4.8 out of 5 Customer Rating
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1 in. Cast Bronze FNPT Backflow Preventer
Zurn Wilkins 975XL2

1 in. Cast Bronze FNPT Backflow Preventer
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4 out of 5 Customer Rating
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1-1/2 in. Cast Bronze Threaded 175 psi Backflow Preventer
Zurn Wilkins 975XL2SEU

1-1/2 in. Cast Bronze Threaded 175 psi Backflow Preventer
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5 out of 5 Customer Rating
Requires Certification

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3/8 in. Stainless Steel MPT Dual Check Valve
Watts Model SD-2

3/8 in. Stainless Steel MPT Dual Check Valve
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3/4 LF DBL CHK VLV BFP ASSY QT
Watts LF007 Series

3/4 LF DBL CHK VLV BFP ASSY QT
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4.9 out of 5 Customer Rating
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1 in. Cast Bronze FNPT Backflow Preventer
Zurn Wilkins 375XL

1 in. Cast Bronze FNPT Backflow Preventer
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1 in. Cast Bronze FNPT Backflow Preventer
Zurn Wilkins 950XLT2

1 in. Cast Bronze FNPT Backflow Preventer
Part #W950XLT2G
Item #3908878
5 out of 5 Customer Rating
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1 in. Brass FPT Dual Check Valve
Watts Series LF07S

1 in. Brass FPT Dual Check Valve
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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
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3/8 in. Stainless Steel FPT Dual Check Valve with Atmospheric Vent and Strainer
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