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

Backflow Preventers (622 items) - Page 7

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 1-1/2in Union Fem Cppr Sweat Inlt X 1-1/2in Fem NPT Outlt LF Fire Protctn Dual Chk 112UFCX112F-700XLFP
Wilkins

1-1/2in Union Fem Cppr Sweat Inlt X 1-1/2in Fem NPT Outlt LF Fire Protctn Dual Chk

Zoro # G815797161
Mfr # 112UFCX112F-700XLFP
product price:  $362.99
/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 3-350
Wilkins

Double Check Backflow Preventer

Zoro # G813342493
Mfr # 3-350
product price:  $4,922.99
/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
Watts DoubleCheckValve, W709, 2-1/2in, NRSShutoff LF709-NRS
Watts

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

Zoro # G2199517
Mfr # LF709-NRS
product price:  $4,655.99
/ea
Watts DoubleCheckValve, Watt709, 3in, 18-7/8inH LF709-OSY
Watts

DoubleCheckValve, Watt709, 3in, 18-7/8inH

Zoro # G2199447
Mfr # LF709-OSY
product price:  $6,106.99
/ea
Watts Double Check Valve, Watts 719, 2in, FNPT LF719-QT-S
Watts

Double Check Valve, Watts 719, 2in, FNPT

Zoro # G1686645
Mfr # LF719-QT-S
product price:  $1,915.99
/ea
Wilkins Backflow Preventer, 2 in, FNPT 2-950XL3
Wilkins

Backflow Preventer, 2 in, FNPT

Zoro # G408230037
Mfr # 2-950XL3
product price:  $1,442.99
/ea
Watts Backflow Preventer, High Investment Level 1 LF919-QT-S-FS
Watts

Backflow Preventer, High Investment Level

Zoro # G810090496
Mfr # 1 LF919-QT-S-FS
product price:  $1,544.99
/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
Watts Backflow Preventer, Size 1/2", 100 psi 1/2 B911T-M3 (W/PRESS)
Watts

Backflow Preventer, Size 1/2", 100 psi

Zoro # G305303667
Mfr # 1/2 B911T-M3 (W/PRESS)
product price:  $392.99
/ea
Wilkins Double Check Backflow Preventer, SS 3-350AST
Wilkins

Double Check Backflow Preventer, SS

Zoro # G213342598
Mfr # 3-350AST
product price:  $4,922.99
/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 Backflow Preventer, Size 3/8", 200 psi 3/8 SD2-MN
Watts

Backflow Preventer, Size 3/8", 200 psi

Zoro # G705303670
Mfr # 3/8 SD2-MN
product price:  $345.99
/ea
Watts Backflow Preventer, Size 3/8", 200 psi 3/8 SD2-FN
Watts

Backflow Preventer, Size 3/8", 200 psi

Zoro # G305303698
Mfr # 3/8 SD2-FN
product price:  $305.99
/ea
Wilkins W/Bv 1 1/2" 950Xl 112-950XL
Wilkins

W/Bv 1 1/2" 950Xl

Zoro # G7737981
Mfr # 112-950XL
product price:  $1,279.99
/ea
Watts Lead Free 1.5in Backflow Preventer LF009M2QT 1.5
Watts

Lead Free 1.5in Backflow Preventer

Zoro # G515674120
Mfr # LF009M2QT 1.5
product price:  $1,525.99
/ea
No Product Image Available
Apollo Valves

Dual Check Backflow Preventer, 3/8 in

Zoro # G409935313
Mfr # 4C10201A
product price:  $120.50
/ea
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 Reduced Pressure Zone Backflow Preventer 12-375XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5081991
Mfr # 12-375XL
product price:  $910.99
/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
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
Watts 1 IN Lead Free Double Check Valve Backflow Preventer Assembly T063232
Watts

1 IN Lead Free Double Check Valve Backflow Preventer Assembly

Zoro # G316501007
Mfr # T063232
product price:  $575.13
/ea
Watts Backflow Preventer, Size 3/4", 175 psi 3/4 9DS-M2
Watts

Backflow Preventer, Size 3/4", 175 psi

Zoro # G005303622
Mfr # 3/4 9DS-M2
product price:  $219.99
/ea
Watts Backflow Preventer, Size 1", 175 psi 1X1 LF7R10-U2
Watts

Backflow Preventer, Size 1", 175 psi

Zoro # G805303587
Mfr # 1X1 LF7R10-U2
product price:  $173.99
/ea
Watts DoubleCheckDetector, 709DCDA, 4in, Flanged 709DCDA-OSY-CFM
Watts

DoubleCheckDetector, 709DCDA, 4in, Flanged

Zoro # G2199191
Mfr # 709DCDA-OSY-CFM
product price:  $7,535.99
/ea
Watts DoubleCheckValve, 709, 2-1/2in, OSYShutoffs LF709-OSY
Watts

DoubleCheckValve, 709, 2-1/2in, OSYShutoffs

Zoro # G2199456
Mfr # LF709-OSY
product price:  $4,919.99
/ea
Watts DoubleCheckDetector, 709DCDA, 4in, Flanged 709DCDA-OSY-GPM
Watts

DoubleCheckDetector, 709DCDA, 4in, Flanged

Zoro # G2199149
Mfr # 709DCDA-OSY-GPM
product price:  $8,292.99
/ea
Watts Reduced Pressure Zone, 994, 4in, Flanged 994-NRS
Watts

Reduced Pressure Zone, 994, 4in, Flanged

Zoro # G2198948
Mfr # 994-NRS
product price:  $5,523.99
/ea
Watts Double CheckValve, Watts709, 8in, 19-15/16 LF709-NRS
Watts

Double CheckValve, Watts709, 8in, 19-15/16

Zoro # G2199471
Mfr # LF709-NRS
product price:  $8,792.99
/ea
Watts Backflow Preventer, Size 1 1/4", 175 psi 1 1/4 LF009M2-QT-S
Watts

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

Zoro # G805303679
Mfr # 1 1/4 LF009M2-QT-S
product price:  $1,608.99
/ea
Watts Backflow Preventer, Size 3/4", 150 psi 3/8 LF7C
Watts

Backflow Preventer, Size 3/4", 150 psi

Zoro # G105303751
Mfr # 3/8 LF7C
product price:  $310.99
/ea
Wilkins Backflow Preventer, 1 in. Size, Bronze 1-375XLB
Wilkins

Backflow Preventer, 1 in. Size, Bronze

Zoro # G2373476
Mfr # 1-375XLB
product price:  $986.99
/ea
Watts Double Check Valve, Watts 719, 3/4in, FNPT LF719-QT-S
Watts

Double Check Valve, Watts 719, 3/4in, FNPT

Zoro # G1686688
Mfr # LF719-QT-S
product price:  $733.99
/ea
Backflow Preventers (622 items) - Page 7
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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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