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

Backflow Preventers (615 items) - Page 6

Zurn Bronze Backflow Preventer Valve 1 pc 34-975XL
Zurn

Bronze Backflow Preventer Valve 1 pc

Zoro # G805309671
Mfr # 34-975XL
product price: 
$829.34
/ea
Wilkins 2in 950 DCDA Bfly w/Switch Less Mtr NPT Top Access Non Potable 2-950XLTDABFSSLM
Wilkins

2in 950 DCDA Bfly w/Switch Less Mtr NPT Top Access Non Potable

Zoro # G015797169
Mfr # 2-950XLTDABFSSLM
product price: 
$4,710.99
/ea
Watts 1-1/4 In Lead-Free Reduced Pressure Zone Backflow Preventer Assembly 88004113
Watts

1-1/4 In Lead-Free Reduced Pressure Zone Backflow Preventer Assembly

Zoro # G912414916
Mfr # 88004113
product price: 
$1,478.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 34-375
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G3184571
Mfr # 34-375
product price: 
$658.99
/ea
Wilkins Backflow Preventer, 1 in, FNPT 1-950XLT
Wilkins

Backflow Preventer, 1 in, FNPT

Zoro # G608230066
Mfr # 1-950XLT
product price: 
$419.99
/ea
Watts Backflow Preventer, Size 1/2", 175 psi 1/2 LF009-QT-S
Watts

Backflow Preventer, Size 1/2", 175 psi

Zoro # G105303638
Mfr # 1/2 LF009-QT-S
product price: 
$660.99
/ea
Wilkins Backflow Preventer, 1-1/4 in. Size, Bronze 114-375XLB
Wilkins

Backflow Preventer, 1-1/4 in. Size, Bronze

Zoro # G2373467
Mfr # 114-375XLB
product price: 
$781.81
/ea
Wilkins W/Ubv Non-Potable 1" 975Xl 1-975XLU
Wilkins

W/Ubv Non-Potable 1" 975Xl

Zoro # G7737351
Mfr # 1-975XLU
product price: 
$929.99
/ea
Oatey 4 PVC Backwater Valve 43904
Oatey

4 PVC Backwater Valve

Zoro # G908178549
Mfr # 43904
product price: 
$46.59
/ea
Sold in mult. of 2 for $93.18
Oatey 42725 2 in. Male Backwater Device 378158
Oatey

42725 2 in. Male Backwater Device

Zoro # G616319296
Mfr # 378158
product price: 
$22.59
/ea
Spears Backwater Valve, 2 In., PVC, 120 Deg F S275P
Spears

Backwater Valve, 2 In., PVC, 120 Deg F

Zoro # G5065532
Mfr # S275P
product price: 
$143.09
/ea
Watts Backflow Preventer, Size 3/4", 175 psi 3/4 SS009M3-QT
Watts

Backflow Preventer, Size 3/4", 175 psi

Zoro # G405303611
Mfr # 3/4 SS009M3-QT
product price: 
$4,826.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 1 1/4 LF909M1-QT-FS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G611853825
Mfr # 1 1/4 LF909M1-QT-FS
product price: 
$4,130.99
/ea
Watts Backflow Preventer, High Investment Level 3/4 LF919-QT-S-FS
Watts

Backflow Preventer, High Investment Level

Zoro # G710090442
Mfr # 3/4 LF919-QT-S-FS
product price: 
$1,427.83
/ea
Wilkins Tc Up Lead Free 2" 975Xl2 2-975XL2TCU
Wilkins

Tc Up Lead Free 2" 975Xl2

Zoro # G7737884
Mfr # 2-975XL2TCU
product price: 
$2,318.99
/ea
Wilkins 4in 375 RP W/Wireless Monitor DI Body NRS Gates FLG X FLG 4-375W1
Wilkins

4in 375 RP W/Wireless Monitor DI Body NRS Gates FLG X FLG

Zoro # G215797181
Mfr # 4-375W1
product price: 
$7,774.99
/ea
Watts Double Check Valve, Watts774, 3in, Flanged 774-OSY
Watts

Double Check Valve, Watts774, 3in, Flanged

Zoro # G2199316
Mfr # 774-OSY
product price: 
$4,159.99
/ea
Watts Double Check Valve, Watt709, 10in, Flanged LF709-OSY
Watts

Double Check Valve, Watt709, 10in, Flanged

Zoro # G2199401
Mfr # LF709-OSY
product price: 
$31,961.99
/ea
Watts DoubleCheckDetector, 774Series 774DCDA-OSY-GPM
Watts

DoubleCheckDetector, 774Series

Zoro # G2199036
Mfr # 774DCDA-OSY-GPM
product price: 
$5,783.99
/ea
Watts Double Check Valve Assembly, Watts 757 21/2 757 OSY
Watts

Double Check Valve Assembly, Watts 757

Zoro # G0683584
Mfr # 21/2 757 OSY
product price: 
$3,566.99
/ea
Watts Double Check Valve Assembly, Watts 757 757 OSY 6
Watts

Double Check Valve Assembly, Watts 757

Zoro # G1901313
Mfr # 757 OSY 6
product price: 
$7,800.99
/ea
Watts Double Check Valve Assembly, Watts 757 3 757 OSY
Watts

Double Check Valve Assembly, Watts 757

Zoro # G3348965
Mfr # 3 757 OSY
product price: 
$4,175.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 112-375XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5064437
Mfr # 112-375XL
product price: 
$1,727.99
/ea
Watts Backflow Preventer, High Investment Level 1 LF800M4-QT-FZ
Watts

Backflow Preventer, High Investment Level

Zoro # G210090430
Mfr # 1 LF800M4-QT-FZ
product price: 
$438.61
/ea
Watts DoubleCheckValve, W709, 2-1/2in, NRSShutoff LF709-NRS
Watts

DoubleCheckValve, W709, 2-1/2in, NRSShutoff

Zoro # G2199517
Mfr # LF709-NRS
product price: 
$5,121.99
/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 Double Check Backflow Preventer 3-350
Wilkins

Double Check Backflow Preventer

Zoro # G813342493
Mfr # 3-350
product price: 
$4,922.99
/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 Reduced Pressure Zone Backflow Preventer 114-975XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G1170802
Mfr # 114-975XL
product price: 
$1,513.99
/ea
Apollo Valves Reduced Pressure Zone Backflow Preventer 4A205A2F
Apollo Valves

Reduced Pressure Zone Backflow Preventer

Zoro # G310436220
Mfr # 4A205A2F
product price: 
$367.99
/ea
Watts Backflow Preventer, Size 3/4", 125 psi 3/4 NF8
Watts

Backflow Preventer, Size 3/4", 125 psi

Zoro # G405303604
Mfr # 3/4 NF8
product price: 
$92.69
/ea
Wilkins Reduced Pressure Principle Backflow Prev 1-375ST
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7737534
Mfr # 1-375ST
product price: 
$4,010.99
/ea
Watts 1/2 IN Lead Free Double Check Valve Backflow Preventer Assembly T063230
Watts

1/2 IN Lead Free Double Check Valve Backflow Preventer Assembly

Zoro # G216501022
Mfr # T063230
product price: 
$439.86
/ea
Legend Valve 2" S-641 BACKWATER W/SLEEVE 202-262
Legend Valve

2" S-641 BACKWATER W/SLEEVE

Zoro # G2836315
Mfr # 202-262
product price: 
$42.45
/ea
Watts DoubleCheckDetector, 709DCDA, 4in, Flanged 709DCDA-OSY-CFM
Watts

DoubleCheckDetector, 709DCDA, 4in, Flanged

Zoro # G2199191
Mfr # 709DCDA-OSY-CFM
product price: 
$8,289.99
/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: 
$205.99
/ea
Backflow Preventers (615 items) - Page 6
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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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175 psi pressure switch4 in backflow preventerbackflow checkwatts back-flow preventerbackflow preventersize
watts series 009 3/41-1/2 in backflow preventerhose connection vacuum breaker1 inch backflowbackflow check preventer

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