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

Backflow Preventers (615 items) - Page 9

Wilkins Backflow Preventer, 2 in. Size, Bronze 2-375XLB
Wilkins

Backflow Preventer, 2 in. Size, Bronze

Zoro # G2373449
Mfr # 2-375XLB
product price: 
$1,870.99
/ea
Wilkins Backflow Preventer, 2 in, FNPT 2-975XL2SEU
Wilkins

Backflow Preventer, 2 in, FNPT

Zoro # G008230086
Mfr # 2-975XL2SEU
product price: 
$2,886.99
/ea
Watts Backflow Preventer, Size 1", 125 psi 1 188A
Watts

Backflow Preventer, Size 1", 125 psi

Zoro # G305303704
Mfr # 1 188A
product price: 
$231.99
/ea
Watts Backflow Preventer, Size 3/4", 125 psi 3/4 8A
Watts

Backflow Preventer, Size 3/4", 125 psi

Zoro # G805303631
Mfr # 3/4 8A
product price: 
$93.59
/ea
Wilkins Backflow Preventer, 1/2 in, FNPT 12-975XL3
Wilkins

Backflow Preventer, 1/2 in, FNPT

Zoro # G008230062
Mfr # 12-975XL3
product price: 
$910.99
/ea
Watts Backflow Preventer, Size 1 1/2", 150 psi 1 1/2 800M4-QT
Watts

Backflow Preventer, Size 1 1/2", 150 psi

Zoro # G605303596
Mfr # 1 1/2 800M4-QT
product price: 
$1,128.99
/ea
Watts Dual Check with Vent, Watt9BD, 3/8in, Flare 9BD
Watts

Dual Check with Vent, Watt9BD, 3/8in, Flare

Zoro # G1686721
Mfr # 9BD
product price: 
$637.65
/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
Watts Backflow Preventer, High Investment Level 1 1/4 LF919-QT-S-FS
Watts

Backflow Preventer, High Investment Level

Zoro # G210090485
Mfr # 1 1/4 LF919-QT-S-FS
product price: 
$1,443.99
/ea
Spears Backwater Valve, 6 In., PVC, 120 Deg F S675P
Spears

Backwater Valve, 6 In., PVC, 120 Deg F

Zoro # G5065541
Mfr # S675P
product price: 
$639.99
/ea
Wilkins Backflow Preventer, 3/4 in. Size, Bronze 34-375XLB
Wilkins

Backflow Preventer, 3/4 in. Size, Bronze

Zoro # G2373485
Mfr # 34-375XLB
product price: 
$931.99
/ea
Watts Double Check Valve Assembly, 25 3/4" L 3/4 LF007M3-QT-S-FZ
Watts

Double Check Valve Assembly, 25 3/4" L

Zoro # G510854510
Mfr # 3/4 LF007M3-QT-S-FZ
product price: 
$648.92
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 114-375
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G2661513
Mfr # 114-375
product price: 
$1,290.99
/ea
Watts Check Valve, 2.125 in Overall L LF601 1/2
Watts

Check Valve, 2.125 in Overall L

Zoro # G205303705
Mfr # LF601 1/2
product price: 
$186.99
/ea
Wilkins Backflow Preventer, 1 1/4 in, FNPT 114-975XL3
Wilkins

Backflow Preventer, 1 1/4 in, FNPT

Zoro # G608230073
Mfr # 114-975XL3
product price: 
$1,713.99
/ea
Wilkins Backflow Preventer, 1 in, FMTC x MMTC 1UFMX1MM-700XL
Wilkins

Backflow Preventer, 1 in, FMTC x MMTC

Zoro # G208230077
Mfr # 1UFMX1MM-700XL
product price: 
$114.99
/ea
Wilkins Backflow Preventer, 3/4 in, FNPT 34-975XL2SAG
Wilkins

Backflow Preventer, 3/4 in, FNPT

Zoro # G508230012
Mfr # 34-975XL2SAG
product price: 
$1,343.99
/ea
Wilkins Backflow Preventer1"Size F Flange175 psi 1-350XL
Wilkins

Backflow Preventer1"Size F Flange175 psi

Zoro # G3952879
Mfr # 1-350XL
product price: 
$491.99
/ea
Wilkins Double Check Backflow Preventer 6-350A
Wilkins

Double Check Backflow Preventer

Zoro # G813342509
Mfr # 6-350A
product price: 
$9,264.99
/ea
Wilkins Double Check Detector Backflow Preventer 6-350ASTDA
Wilkins

Double Check Detector Backflow Preventer

Zoro # G7513412
Mfr # 6-350ASTDA
product price: 
$11,202.99
/ea
Wilkins Double Check Backflow Preventer 4-350A
Wilkins

Double Check Backflow Preventer

Zoro # G613342532
Mfr # 4-350A
product price: 
$6,423.99
/ea
Wilkins Pressure Principle Backflow Preventer 6-375A
Wilkins

Pressure Principle Backflow Preventer

Zoro # G813342554
Mfr # 6-375A
product price: 
$12,487.99
/ea
Wilkins Reduced Pressure Principle Backflow Prev 3-375AST
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7504635
Mfr # 3-375AST
product price: 
$5,917.99
/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 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: 
$13,580.96
/ea
Wilkins Double Check Backflow Preventer 3-375
Wilkins

Double Check Backflow Preventer

Zoro # G7511172
Mfr # 3-375
product price: 
$5,917.99
/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
Oatey PVC Backwater Valve, 4" 43904
Oatey

PVC Backwater Valve, 4"

Zoro # G7712559
Mfr # 43904
product price: 
$50.79
/ea
Sold in mult. of 2 for $101.58
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 Valve Backflow Preventer 8-350ASTDA
Wilkins

Double Check Valve Backflow Preventer

Zoro # G7737394
Mfr # 8-350ASTDA
product price: 
$19,711.99
/ea
Wilkins Dual Check Valve Assembly With Intermedi 12-760
Wilkins

Dual Check Valve Assembly With Intermedi

Zoro # G7737665
Mfr # 12-760
product price: 
$145.99
/ea
Watts 1.5 in back flow preventer F391011
Watts

1.5 in back flow preventer

Zoro # G516056420
Mfr # F391011
product price: 
$4,734.99
/ea
Wilkins Pressure Principle Backflow Preventer, SS 10-375AST
Wilkins

Pressure Principle Backflow Preventer, SS

Zoro # G813342561
Mfr # 10-375AST
product price: 
$33,520.99
/ea
Wilkins Pressure Principle Backflow Preventer 10-375A
Wilkins

Pressure Principle Backflow Preventer

Zoro # G513342571
Mfr # 10-375A
product price: 
$33,520.99
/ea
Watts Backflow Preventer, Size 3/8", 150 psi 3/8 SD3-MN
Watts

Backflow Preventer, Size 3/8", 150 psi

Zoro # G005303653
Mfr # 3/8 SD3-MN
product price: 
$495.99
/ea
Spears Backwater Valve, 4 In., PVC, 120 Deg F S475P
Spears

Backwater Valve, 4 In., PVC, 120 Deg F

Zoro # G5065593
Mfr # S475P
product price: 
$189.78
/ea
Backflow Preventers (615 items) - Page 9
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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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