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  1. Home
  2. /
  3. Plumbing
  4. /
  5. Pipes, Valves & Fittings
  6. /
  7. Valves
  8. /
  9. Backflow Preventers

Backflow Preventers (624 items) - Page 3

Caleffi 573002A 1/2" Npt Inlet 573002A
Caleffi

573002A 1/2" Npt Inlet

Zoro # G6924785
Mfr # 573002A
product price:  $172.99
/ea
Wilkins Reduced Pressure Principle Backflow Prev AG-4
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7737674
Mfr # AG-4
product price:  $136.99
/ea
Febco Reduced Pressure Zone Backflow Preventer 825 YA 1 1/2
Febco

Reduced Pressure Zone Backflow Preventer

Zoro # G3130145
Mfr # 825 YA 1 1/2
product price:  $1,901.99
/ea
Watts 1-1/2 In Lead-Free Double Check Backflow Preventer Assembly 0063234
Watts

1-1/2 In Lead-Free Double Check Backflow Preventer Assembly

Zoro # G012414830
Mfr # 0063234
product price:  $986.81
/ea
Apollo Valves Double Check Valve Assembly, Size 3/4 In. 4ALF104A2F
Apollo Valves

Double Check Valve Assembly, Size 3/4 In.

Zoro # G5151562
Mfr # 4ALF104A2F
product price:  $247.99
/ea
Watts Backflow Preventer, Size 1 1/4", 150 psi 1 1/4 800M4-QT
Watts

Backflow Preventer, Size 1 1/4", 150 psi

Zoro # G505303603
Mfr # 1 1/4 800M4-QT
product price:  $881.99
/ea
Febco Reduced Pressure Zone Backflow Preventer 825 YA 2
Febco

Reduced Pressure Zone Backflow Preventer

Zoro # G2185583
Mfr # 825 YA 2
product price:  $2,207.99
/ea
Watts 2 IN Lead Free Double Check Valve Backflow Preventer Assembly, Quarter Turn Shutoff T063235
Watts

2 IN Lead Free Double Check Valve Backflow Preventer Assembly, Quarter Turn Shutoff

Zoro # G216501008
Mfr # T063235
product price:  $1,284.99
/ea
Watts Double Check Valve, Watts709, 4in, Flanged LF709-NRS
Watts

Double Check Valve, Watts709, 4in, Flanged

Zoro # G2199499
Mfr # LF709-NRS
product price:  $6,362.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 957 OSY 6
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G2268646
Mfr # 957 OSY 6
product price:  $9,696.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 1/2 SS009M3QT
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G0711006
Mfr # 1/2 SS009M3QT
product price:  $2,749.99
/ea
Watts Reduced Pressure Zone Assembly, 175 psi LF909-DOSY-FS
Watts

Reduced Pressure Zone Assembly, 175 psi

Zoro # G004393112
Mfr # LF909-DOSY-FS
product price:  $5,620.99
/ea
Watts Reduced Pressure Zone Assembly, 175 psi LF909-DOSY-FS
Watts

Reduced Pressure Zone Assembly, 175 psi

Zoro # G604393116
Mfr # LF909-DOSY-FS
product price:  $10,025.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 1-375XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5064482
Mfr # 1-375XL
product price:  $983.99
/ea
Watts Backflow Preventer, Size 1/2", 125 psi 1/2 LFN9-C
Watts

Backflow Preventer, Size 1/2", 125 psi

Zoro # G605303602
Mfr # 1/2 LFN9-C
product price:  $490.99
/ea
Watts Backflow Preventer, Size 1 1/2", 175 psi 1 1/2 LF009M2-QT-S
Watts

Backflow Preventer, Size 1 1/2", 175 psi

Zoro # G205303668
Mfr # 1 1/2 LF009M2-QT-S
product price:  $1,781.99
/ea
Wilkins Backflow Preventer, 1-1/2" Size, 175 psi 112-350
Wilkins

Backflow Preventer, 1-1/2" Size, 175 psi

Zoro # G3952650
Mfr # 112-350
product price:  $956.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 3/4 LF009M3-QT-S-FS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G111853851
Mfr # 3/4 LF009M3-QT-S-FS
product price:  $1,141.99
/ea
Watts 1 1/2 In Lead Free Reduced Pressure Zone Backflow Preventer Assembly 88004114
Watts

1 1/2 In Lead Free Reduced Pressure Zone Backflow Preventer Assembly

Zoro # G712414895
Mfr # 88004114
product price:  $1,504.77
/ea
Watts Hydrant Meter with Backflow Preventer 6000HMB Hydrant BFP
Watts

Hydrant Meter with Backflow Preventer

Zoro # G3101612
Mfr # 6000HMB Hydrant BFP
product price:  $9,572.99
/ea
Legend Valve 2" S-640 PVC BACKWATER VALVE 202-252
Legend Valve

2" S-640 PVC BACKWATER VALVE

Zoro # G2836105
Mfr # 202-252
product price:  $40.85
/ea
Woodford Manufacturing Dble-Chck Brass Backflow Prev, 1-1/8" -1 50HF-BR
Woodford Manufacturing

Dble-Chck Brass Backflow Prev, 1-1/8" -1

Zoro # G4691347
Mfr # 50HF-BR
product price:  $31.89
/ea
Watts Reduced Pressure Zone Backflow Preventer 009-M1-QTS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G2342331
Mfr # 009-M1-QTS
product price:  $697.99
/ea
Wilkins Backflow Preventer, 3/4 in, FNPT 34-950XL3
Wilkins

Backflow Preventer, 3/4 in, FNPT

Zoro # G708230072
Mfr # 34-950XL3
product price:  $448.99
/ea
Watts Double Check Detector, 007, 2in, FNPT 007M1DCDA-OSY-GPM
Watts

Double Check Detector, 007, 2in, FNPT

Zoro # G2199237
Mfr # 007M1DCDA-OSY-GPM
product price:  $5,977.99
/ea
Wilkins Backflow Preventer1"Size F Flange175 psi 1-350
Wilkins

Backflow Preventer1"Size F Flange175 psi

Zoro # G3952903
Mfr # 1-350
product price:  $349.99
/ea
Watts 3/4 IN Lead Free Double Check Valve Backflow Preventer Assembly T063231
Watts

3/4 IN Lead Free Double Check Valve Backflow Preventer Assembly

Zoro # G916500998
Mfr # T063231
product price:  $485.99
/ea
Wilkins 2-950XLT2 - 2" 950XLT2 Double Check Backflow Preventer 2-950LXLT2
Wilkins

2-950XLT2 - 2" 950XLT2 Double Check Backflow Preventer

Zoro # G2390907
Mfr # 2-950LXLT2
product price:  $1,565.99
/ea
Wilkins 2-375DA - 2" 375DA Reduced Pressure Detector Backflow Preventer 2-375DA
Wilkins

2-375DA - 2" 375DA Reduced Pressure Detector Backflow Preventer

Zoro # G2391920
Mfr # 2-375DA
product price:  $4,309.99
/ea
Watts Double Check Valve, Watts709, 3in, Flanged LF709-NRS
Watts

Double Check Valve, Watts709, 3in, Flanged

Zoro # G2199508
Mfr # LF709-NRS
product price:  $4,995.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 2-375XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5064421
Mfr # 2-375XL
product price:  $1,910.99
/ea
Watts Double Check Valve, Watts709, 8in, Flanged LF709-OSY
Watts

Double Check Valve, Watts709, 8in, Flanged

Zoro # G2199410
Mfr # LF709-OSY
product price:  $20,395.99
/ea
Wilkins Backflow Preventer, 1 in, FNPT 1-950XL3
Wilkins

Backflow Preventer, 1 in, FNPT

Zoro # G808230071
Mfr # 1-950XL3
product price:  $491.99
/ea
Wilkins Backflow Preventer, 2 in, FNPT 2-950XLTDABFSS
Wilkins

Backflow Preventer, 2 in, FNPT

Zoro # G808230088
Mfr # 2-950XLTDABFSS
product price:  $4,195.99
/ea
Watts Anti-Siphon Backflow Preventer, Watts 008 1/2 LF 008PCQT-1/2"
Watts

Anti-Siphon Backflow Preventer, Watts 008

Zoro # G0903262
Mfr # 1/2 LF 008PCQT-1/2"
product price:  $922.96
/ea
Wilkins Backflow Preventer, 1/2 in. Size, Bronze 12-375XLB
Wilkins

Backflow Preventer, 1/2 in. Size, Bronze

Zoro # G2373491
Mfr # 12-375XLB
product price:  $471.99
/ea
Backflow Preventers (624 items) - Page 3
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About Backflow Preventers

Backflow preventers are essential plumbing devices used to protect potable water systems from contamination and pollution caused by backflow of non-potable water or other substances. The backflow preventer ensures that the water flows in only one direction, preventing any backflow of water from the plumbing system back into the water supply.

Types of Backflow Preventers

There are various types of backflow preventers available in the market, including reduced pressure zone (RPZ), double check valve (DC), and pressure vacuum breaker (PVB). Each type of backflow preventer has its unique features, making them suitable for different applications. The selection of the type of backflow preventer depends on various factors such as pipe size, connection type, body material, series, maximum pressure, and temperature range.

How Backflow Preventers are Made

Backflow preventers are made of various materials such as brass, stainless steel, and plastic. The body of the backflow preventer is designed to provide a reliable, long-lasting, and leak-proof seal. The internal components, such as the check valves and relief valves, are made of rubber, neoprene, or similar materials to ensure they function correctly. Backflow preventers are manufactured using advanced technologies and tested to ensure they meet the required performance standards.

Industries that use Backflow Preventers

Backflow preventers are widely used in various industries, including residential, commercial, industrial, and institutional applications. Plumbing contractors, engineers, and building maintenance personnel frequently use backflow preventers to ensure the safety and integrity of the water supply. Some of the industries that commonly use backflow preventers include water treatment plants, food and beverage processing plants, hospitals, and laboratories.

Find the Backflow Preventers You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of plumbing tools & supplies, along with other equipment and essentials to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.
Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

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backflow check preventer6" threaded pipe cap1-1/2 in backflow preventer4 in backflow preventerhose connection vacuum breaker

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