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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 (622 items) - Page 12

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, 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 1/2", 150 psi 1/2 LF800M4-QT
Watts

Backflow Preventer, Size 1/2", 150 psi

Zoro # G505303757
Mfr # 1/2 LF800M4-QT
product price:  $532.99
/ea
Wilkins Backflow Preventer, 1 1/4 in, FMTC x FNPT 114UFMX1UF-700XL
Wilkins

Backflow Preventer, 1 1/4 in, FMTC x FNPT

Zoro # G508230104
Mfr # 114UFMX1UF-700XL
product price:  $195.99
/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 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
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:  $614.29
/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
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 Preventer, 1 1/2 in, FNPT 112-975XL3
Wilkins

Backflow Preventer, 1 1/2 in, FNPT

Zoro # G108230054
Mfr # 112-975XL3
product price:  $1,727.99
/ea
Wilkins Backflow Preventer, 1 1/2 in, FNPT 112-950XL3
Wilkins

Backflow Preventer, 1 1/2 in, FNPT

Zoro # G808230033
Mfr # 112-950XL3
product price:  $1,279.99
/ea
Watts Double Check Valve Assembly, 25 3/4" L 1 LF007M1-QT-S-FZ
Watts

Double Check Valve Assembly, 25 3/4" L

Zoro # G010854317
Mfr # 1 LF007M1-QT-S-FZ
product price:  $785.83
/ea
Watts Backflow Preventer, Size 1 1/4", 175 psi 1 1/4 009M2-QT
Watts

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

Zoro # G705303656
Mfr # 1 1/4 009M2-QT
product price:  $1,348.99
/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
Wilkins Backflow Preventer, 3/4 in, FNPT 34-350XLFT
Wilkins

Backflow Preventer, 3/4 in, FNPT

Zoro # G708230065
Mfr # 34-350XLFT
product price:  $448.99
/ea
Apollo Valves Reduced Pressure Zone Backflow Preventer 4A204A2F
Apollo Valves

Reduced Pressure Zone Backflow Preventer

Zoro # G510436242
Mfr # 4A204A2F
product price:  $297.99
/ea
Wilkins Backflow Preventer, 1 1/2 in, FNPT 112-950XLT2
Wilkins

Backflow Preventer, 1 1/2 in, FNPT

Zoro # G408230068
Mfr # 112-950XLT2
product price:  $1,386.99
/ea
Wilkins Backflow Preventer, 2 in, FNPT 2-375XLS
Wilkins

Backflow Preventer, 2 in, FNPT

Zoro # G408230013
Mfr # 2-375XLS
product price:  $2,300.99
/ea
Watts Double Check Valve Assembly, Watts 007 007MIQTS-1
Watts

Double Check Valve Assembly, Watts 007

Zoro # G3050607
Mfr # 007MIQTS-1
product price:  $617.76
/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:  $1,471.99
/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
Wilkins Reduced Pressure Zone Backflow Preventer 112-375
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G1747392
Mfr # 112-375
product price:  $1,332.99
/ea
Wilkins Backflow Preventer, 1-1/2" Size, 175 psi 112-350XL
Wilkins

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

Zoro # G3952623
Mfr # 112-350XL
product price:  $1,279.99
/ea
Watts Backflow Preventer, High Investment Level 1 1/2 LF919-QT-S-FS
Watts

Backflow Preventer, High Investment Level

Zoro # G610090504
Mfr # 1 1/2 LF919-QT-S-FS
product price:  $2,295.99
/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 Reduced Pressure Zone Backflow Preventer 112-375XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5064437
Mfr # 112-375XL
product price:  $1,727.99
/ea
Legend Valve 4" S-660 ABS BACKWATER VALVE 202-274
Legend Valve

4" S-660 ABS BACKWATER VALVE

Zoro # G2836778
Mfr # 202-274
product price:  $68.96
/ea
Oatey ABS Backwater Valve, 4" 43905
Oatey

ABS Backwater Valve, 4"

Zoro # G7701307
Mfr # 43905
product price:  $56.49
/ea
Sold in mult. of 2 for $112.98
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 DoubleCheckDetector, 007, 3in, Flanged 007DCDAOSY-GPM
Watts

DoubleCheckDetector, 007, 3in, Flanged

Zoro # G2199219
Mfr # 007DCDAOSY-GPM
product price:  $7,695.99
/ea
Watts Double Check Valve, Watts774, 4in, Flanged 774-NRS
Watts

Double Check Valve, Watts774, 4in, Flanged

Zoro # G2199377
Mfr # 774-NRS
product price:  $6,066.99
/ea
Watts DoubleCheckDetector, 4in, Flanged 709DCDA-OSY-GPM
Watts

DoubleCheckDetector, 4in, Flanged

Zoro # G2199115
Mfr # 709DCDA-OSY-GPM
product price:  $18,937.99
/ea
Watts Double Check Detector, 774, 12in, Flanged 774DCDA-OSY-CFM
Watts

Double Check Detector, 774, 12in, Flanged

Zoro # G2199045
Mfr # 774DCDA-OSY-CFM
product price:  $26,592.99
/ea
Wilkins Reduced Pressure Principle Backflow Prev 6-375AOSY
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7503874
Mfr # 6-375AOSY
product price:  $13,079.99
/ea
Tool Time 58ABP .75 in. Backflow Preventer TO571449
Tool Time

58ABP .75 in. Backflow Preventer

Zoro # G803793038
Mfr # TO571449
product price:  $30.35
/ea
Kingston Brass K511SB Dishwasher Air Gap, Brushed Brass K511SB
Kingston Brass

K511SB Dishwasher Air Gap, Brushed Brass

Zoro # G502886628
Mfr # K511SB
product price:  $39.15
/ea
Backflow Preventers (622 items) - Page 12
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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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Camlock FittingsPress-Fit Tube FittingsCopper FittingsPipe & Tube ClampsBlack Pipe Fittings
4 in no hubwatts back-flow preventerwatts series 009 3/4175 psi pressure switch1-1/2 in backflow preventer
hose connection vacuum breaker1 inch backflow4 in backflow preventer6" threaded pipe capbackflow check

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