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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 6

Wilkins Double Check Backflow Preventer 4-350
Wilkins

Double Check Backflow Preventer

Zoro # G113342520
Mfr # 4-350
product price:  $6,423.99
/ea
Watts 3/8 In Dual Check Valve Backflow Preventer, Sae Male Flare End Connections 0061655
Watts

3/8 In Dual Check Valve Backflow Preventer, Sae Male Flare End Connections

Zoro # G412414911
Mfr # 0061655
product price:  $240.10
/ea
Watts 1-1/4 In Thread, Lead-Free Backflow Preventer 0063233
Watts

1-1/4 In Thread, Lead-Free Backflow Preventer

Zoro # G412414898
Mfr # 0063233
product price:  $781.70
/ea
Everflow 5/8" x 7/8" Plastic Air Gap W/ Chrome Cap for Dishwasher Valve P18203
Everflow

5/8" x 7/8" Plastic Air Gap W/ Chrome Cap for Dishwasher Valve

Zoro # G601748247
Mfr # P18203
product price:  $6.73
/ea
Sold in mult. of 2 for $13.46
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 Reduced Pressure Principle Backflow Prev 4-375AST
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7513175
Mfr # 4-375AST
product price:  $6,721.99
/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
Thrifco Plumbing 10 Inch Anti-Siphon Frost Free Sillcock, 1/2 Inch MIP x 1/2 Inc 6417095
Thrifco Plumbing

10 Inch Anti-Siphon Frost Free Sillcock, 1/2 Inch MIP x 1/2 Inc

Zoro # G309547609
Mfr # 6417095
product price:  $37.15
/ea
Watts Reduced Pressure Zone Backflow Preventer 2 LF009-QT-FS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G311853996
Mfr # 2 LF009-QT-FS
product price:  $2,203.99
/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 W/Ft Lead Free 1-1/2" 350Xl 112-350XLFT
Wilkins

W/Ft Lead Free 1-1/2" 350Xl

Zoro # G7737780
Mfr # 112-350XLFT
product price:  $1,279.99
/ea
Wilkins Tcu W/Ft Lead Free 1-1/2" 975Xl2 112-975XL2TCUFT
Wilkins

Tcu W/Ft Lead Free 1-1/2" 975Xl2

Zoro # G7738155
Mfr # 112-975XL2TCUFT
product price:  $2,107.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 1 1/2 LF909M1-QT-FS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G711853954
Mfr # 1 1/2 LF909M1-QT-FS
product price:  $4,823.99
/ea
Watts Fill Valve/Backflow Prvntr, 1/2", 0386462 0386462
Watts

Fill Valve/Backflow Prvntr, 1/2", 0386462

Zoro # G9548773
Mfr # 0386462
product price:  $401.99
/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
Wilkins Backflow Preventer, 1 in, F Flange 1-350FT
Wilkins

Backflow Preventer, 1 in, F Flange

Zoro # G508230081
Mfr # 1-350FT
product price:  $349.99
/ea
Watts Check Valve, 2.125 in Overall L LF601 3/8
Watts

Check Valve, 2.125 in Overall L

Zoro # G205303699
Mfr # LF601 3/8
product price:  $220.99
/ea
Spears Backwater Valve, 3 In., PVC, 120 Deg F S375P
Spears

Backwater Valve, 3 In., PVC, 120 Deg F

Zoro # G5065566
Mfr # S375P
product price:  $162.60
/ea
Apollo Valves DC, GRV, 3in, 4SGLF100 SER, (OS&Y FLG X OS&Y FLG) 4SGLF10003
Apollo Valves

DC, GRV, 3in, 4SGLF100 SER, (OS&Y FLG X OS&Y FLG)

Zoro # G522711481
Mfr # 4SGLF10003
product price:  $1,553.99
/ea
Apollo Valves Reduced Pressure Zone Backflow Preventer 4A208A2F
Apollo Valves

Reduced Pressure Zone Backflow Preventer

Zoro # G110481833
Mfr # 4A208A2F
product price:  $798.99
/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 Backflow Preventer, Size 2", 150 psi 2 800M4-QT
Watts

Backflow Preventer, Size 2", 150 psi

Zoro # G005303585
Mfr # 2 800M4-QT
product price:  $1,237.99
/ea
Watts Backflow Preventer, High Investment Level 2 LF919-QT-S-FS
Watts

Backflow Preventer, High Investment Level

Zoro # G110090486
Mfr # 2 LF919-QT-S-FS
product price:  $2,177.99
/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 DoubleCheckDetector, 774Series 774DCDA-OSY-GPM
Watts

DoubleCheckDetector, 774Series

Zoro # G2199036
Mfr # 774DCDA-OSY-GPM
product price:  $5,783.99
/ea
Watts Double Check Valve, Watts709, 6in, 16inH LF709-NRS
Watts

Double Check Valve, Watts709, 6in, 16inH

Zoro # G2199480
Mfr # LF709-NRS
product price:  $11,065.28
/ea
No Product Image Available
Watts

SHUTOFF VALVE

Zoro # G222824498
Mfr # F391012
product price:  $6,346.99
/ea
Apollo Valves Double Check Valve Assembly, Size 1 In. 4ALF105A2F
Apollo Valves

Double Check Valve Assembly, Size 1 In.

Zoro # G5151596
Mfr # 4ALF105A2F
product price:  $263.99
/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
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
Watts Reduced Pressure Zone Assembly, 1/2in 1/2 LF009-QT-PRESS
Watts

Reduced Pressure Zone Assembly, 1/2in

Zoro # G3919750
Mfr # 1/2 LF009-QT-PRESS
product price:  $777.99
/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 Reduced Pressure Zone Backflow Preventer 1 LF009M2-QT-FS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G311853798
Mfr # 1 LF009M2-QT-FS
product price:  $990.99
/ea
Wilkins Backflow Preventer, 2 in, FNPT 2-975XL2S
Wilkins

Backflow Preventer, 2 in, FNPT

Zoro # G908230063
Mfr # 2-975XL2S
product price:  $2,602.99
/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 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
Backflow Preventers (622 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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