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  1. Home
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  5. Pipes, Valves & Fittings
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  7. Valves
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  9. Backflow Preventers
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Backflow Preventers (650 items) - Page 10

Watts Check Valve, 2.125 in Overall L LF601 1/4
Watts

Check Valve, 2.125 in Overall L

Zoro # G805303686
Mfr # LF601 1/4
product price:  $203.99
/ea
Wilkins Backflow Preventer2"Size F Flange175 psi 2-350XL
Wilkins

Backflow Preventer2"Size F Flange175 psi

Zoro # G3952888
Mfr # 2-350XL
product price:  $1,442.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 114-375XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5064464
Mfr # 114-375XL
product price:  $1,713.99
/ea
Wilkins Backflow Preventer, 1 in, FNPT 1-375FT
Wilkins

Backflow Preventer, 1 in, FNPT

Zoro # G108230078
Mfr # 1-375FT
product price:  $695.99
/ea
Wilkins Backflow Preventer, 1-1/4" Size, 175 psi 114-350
Wilkins

Backflow Preventer, 1-1/4" Size, 175 psi

Zoro # G3952781
Mfr # 114-350
product price:  $892.99
/ea
Wilkins BackflowPreventer3/4"Size F Flange175psi 34-350XL
Wilkins

BackflowPreventer3/4"Size F Flange175psi

Zoro # G3952790
Mfr # 34-350XL
product price:  $448.99
/ea
Watts Check Valve, 2 in Overall L LF6 3/8
Watts

Check Valve, 2 in Overall L

Zoro # G405303758
Mfr # LF6 3/8
product price:  $159.99
/ea
Watts Backflow Preventer, Size 1", 175 psi 1X3/4 LF7RU4-3
Watts

Backflow Preventer, Size 1", 175 psi

Zoro # G705303601
Mfr # 1X3/4 LF7RU4-3
product price:  $163.99
/ea
Watts Backflow Preventer, High Investment Level 1 800M4-QT-FZ
Watts

Backflow Preventer, High Investment Level

Zoro # G310090484
Mfr # 1 800M4-QT-FZ
product price:  $334.14
/ea
Watts Double Check Valve Assembly, 25 3/4" L 2 LF007M1-QT-S-FZ
Watts

Double Check Valve Assembly, 25 3/4" L

Zoro # G510854299
Mfr # 2 LF007M1-QT-S-FZ
product price:  $1,844.99
/ea
Apollo Valves Double Check Valve Assembly, Size 1/2 In. 4ALF103A2F
Apollo Valves

Double Check Valve Assembly, Size 1/2 In.

Zoro # G5151587
Mfr # 4ALF103A2F
product price:  $206.99
/ea
Wilkins Double Check Backflow Preventer, SS 212-350AST
Wilkins

Double Check Backflow Preventer, SS

Zoro # G713342593
Mfr # 212-350AST
product price:  $3,958.99
/ea
Watts Double check backflow preventer 2 LF007M1-QT-FZ
Watts

Double check backflow preventer

Zoro # G311853828
Mfr # 2 LF007M1-QT-FZ
product price:  $1,392.99
/ea
Watts Double check backflow preventer 1 1/2 007M2-QT-FZ
Watts

Double check backflow preventer

Zoro # G911853792
Mfr # 1 1/2 007M2-QT-FZ
product price:  $1,304.99
/ea
Wilkins W/Bv W/Str Lead Free 1/2" 975Xl2 12-975XL2S
Wilkins

W/Bv W/Str Lead Free 1/2" 975Xl2

Zoro # G7737850
Mfr # 12-975XL2S
product price:  $862.99
/ea
Wilkins W/Ubv Lead Free 1-1/2" 975Xl2 112-975XL2U
Wilkins

W/Ubv Lead Free 1-1/2" 975Xl2

Zoro # G7737710
Mfr # 112-975XL2U
product price:  $2,027.99
/ea
Wilkins Pressure Principle Backflow Preventer, SS 8-375AST
Wilkins

Pressure Principle Backflow Preventer, SS

Zoro # G013342576
Mfr # 8-375AST
product price:  $23,871.99
/ea
Oatey 4 PVC Backwater Valve 43904
Oatey

4 PVC Backwater Valve

Zoro # G608178566
Mfr # 43904
product price:  $43.85
/ea
Watts 1 In Bronze Anti-Siphon Pressure Vacuum Breaker Backflow Preventer T388002
Watts

1 In Bronze Anti-Siphon Pressure Vacuum Breaker Backflow Preventer

Zoro # G912414831
Mfr # T388002
product price:  $334.14
/ea
Watts 12 Backflow Preventer 9D-M3  1/2
Watts

12 Backflow Preventer

Zoro # G007915151
Mfr # 9D-M3 1/2
product price:  $177.99
/ea
Wilkins Double Check Backflow Preventer, SS 8-350AST
Wilkins

Double Check Backflow Preventer, SS

Zoro # G513342595
Mfr # 8-350AST
product price:  $18,177.99
/ea
Jones Stephens 3in. Service Weight Cast Iron Backwater Valve B01013
Jones Stephens

3in. Service Weight Cast Iron Backwater Valve

Zoro # G412109282
Mfr # B01013
product price:  $143.99
/ea
Watts 3/4in Backflow Preventor Double Check 3/4 LF007M3-QT
Watts

3/4in Backflow Preventor Double Check

Zoro # G315482420
Mfr # 3/4 LF007M3-QT
product price:  $474.98
/ea
Wilkins Xt Thermal Expansion Tank XT-18
Wilkins

Xt Thermal Expansion Tank

Zoro # G7737525
Mfr # XT-18
product price:  $209.99
/ea
Wilkins Double Check Backflow Preventer, SS 4-350AST
Wilkins

Double Check Backflow Preventer, SS

Zoro # G613342563
Mfr # 4-350AST
product price:  $6,423.99
/ea
Wilkins Double Check Backflow Preventer, SS 6-350AST
Wilkins

Double Check Backflow Preventer, SS

Zoro # G013342552
Mfr # 6-350AST
product price:  $9,264.99
/ea
Wilkins FCIS 1-1/2in LF Bronze 975XL2 NPT ZW206 Norm Op 112-FCIS
Wilkins

FCIS 1-1/2in LF Bronze 975XL2 NPT ZW206 Norm Op

Zoro # G015819427
Mfr # 112-FCIS
product price:  $14,737.99
/ea
Wilkins Double Check Backflow Preventer 4-350
Wilkins

Double Check Backflow Preventer

Zoro # G113342520
Mfr # 4-350
product price:  $6,423.99
/ea
Wilkins Pressure Principle Backflow Preventer 8-375A
Wilkins

Pressure Principle Backflow Preventer

Zoro # G513342533
Mfr # 8-375A
product price:  $23,871.99
/ea
Wilkins Backflow Preventer, 1 in, FNPT 1-975XL2SAG
Wilkins

Backflow Preventer, 1 in, FNPT

Zoro # G208230053
Mfr # 1-975XL2SAG
product price:  $1,423.99
/ea
Taco 1/2 In Combination Boiler Feed Valve And Backflow Preventer Npt X Npt 3450-T2
Taco

1/2 In Combination Boiler Feed Valve And Backflow Preventer Npt X Npt

Zoro # G312414875
Mfr # 3450-T2
product price:  $151.99
/ea
No Product Image Available
Apollo Valves

Air Gap Drain, FNPT

Zoro # G509534584
Mfr # AGD4A6
product price:  $115.99
/ea
Watts DoubleCheckValve, W774, 2-1/2in, OSYShutoff 774-OSY
Watts

DoubleCheckValve, W774, 2-1/2in, OSYShutoff

Zoro # G2199325
Mfr # 774-OSY
product price:  $3,634.99
/ea
Watts Reduced Pressure Zone, 994, 6in, Flanged 994-NRS
Watts

Reduced Pressure Zone, 994, 6in, Flanged

Zoro # G2198939
Mfr # 994-NRS
product price:  $12,543.99
/ea
Watts DoubleCheckDetector, 709DCDA, 3in, Flanged 709DCDA-OSY-CFM
Watts

DoubleCheckDetector, 709DCDA, 3in, Flanged

Zoro # G2199200
Mfr # 709DCDA-OSY-CFM
product price:  $7,297.99
/ea
Watts Double Check Valve, W709, 4in, 22-3/4inH LF709-OSY
Watts

Double Check Valve, W709, 4in, 22-3/4inH

Zoro # G2199438
Mfr # LF709-OSY
product price:  $7,647.99
/ea
Backflow Preventers (650 items) - Page 10
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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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4 in no hubwatts back-flow preventerbackflow check175 psi pressure switch1-1/2 in backflow preventer

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