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

Backflow Preventers (624 items) - Page 2

Wilkins Reduced Pressure Zone Backflow Preventer 34-975XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G0620112
Mfr # 34-975XL
product price:  $768.99
/ea
Legend Valve 4" S-641 BACKWATER W/ SLEEVE 202-264
Legend Valve

4" S-641 BACKWATER W/ SLEEVE

Zoro # G2836120
Mfr # 202-264
product price:  $77.79
/ea
Wilkins Backflow Preventer, 3/4" Size, F Flange, 175 psi 34-350
Wilkins

Backflow Preventer, 3/4" Size, F Flange, 175 psi

Zoro # G3952949
Mfr # 34-350
product price:  $317.99
/ea
Febco Reduced Pressure Zone Backflow Preventer 1 825YA-QT-RP-FS
Febco

Reduced Pressure Zone Backflow Preventer

Zoro # G211853843
Mfr # 1 825YA-QT-RP-FS
product price:  $1,040.99
/ea
Watts 2 In Lead-Free Reduced Pressure Zone Backflow Preventer Assembly 88004115
Watts

2 In Lead-Free Reduced Pressure Zone Backflow Preventer Assembly

Zoro # G012414892
Mfr # 88004115
product price:  $1,941.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 2-975XL2
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5064455
Mfr # 2-975XL2
product price:  $2,212.99
/ea
Apollo Valves Backflow Valve, Forged Brass, 1/2" Size 4ALF4A33AM
Apollo Valves

Backflow Valve, Forged Brass, 1/2" Size

Zoro # G1460903
Mfr # 4ALF4A33AM
product price:  $77.49
/ea
Watts Backflow Preventer, Size 1 1/4", 175 psi 1 1/4 LF009M2-QT
Watts

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

Zoro # G505303610
Mfr # 1 1/4 LF009M2-QT
product price:  $1,396.99
/ea
Legend Valve 1/2" T-459 BACKFLOW PREVENTER 115-113
Legend Valve

1/2" T-459 BACKFLOW PREVENTER

Zoro # G1783488
Mfr # 115-113
product price:  $70.99
/ea
Watts Backflow Preventor, 3" 3" LF009-NRS
Watts

Backflow Preventor, 3"

Zoro # G7275228
Mfr # 3" LF009-NRS
product price:  $5,248.99
/ea
Watts 3/4in Lead Free Forged Brass Dual Check Valve Backflow Preventer with Intermediate Atmospheric Vent 88006832
Watts

3/4in Lead Free Forged Brass Dual Check Valve Backflow Preventer with Intermediate Atmospheric Vent

Zoro # G416501020
Mfr # 88006832
product price:  $432.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 4-375A
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G2220136
Mfr # 4-375A
product price:  $6,721.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 34-975XL2
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5064516
Mfr # 34-975XL2
product price:  $1,077.99
/ea
Legend Valve 3/4" T-459 BACKFLOW PREVENTER 115-114
Legend Valve

3/4" T-459 BACKFLOW PREVENTER

Zoro # G1855037
Mfr # 115-114
product price:  $71.95
/ea
Watts Reduced Pressure Zone Backflow Preventer 2 LF909M1-QT-FS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G611853955
Mfr # 2 LF909M1-QT-FS
product price:  $5,163.99
/ea
Watts 3/8 In Lead-Free Dual Check Valve Backflow Preventer 0792076
Watts

3/8 In Lead-Free Dual Check Valve Backflow Preventer

Zoro # G412414881
Mfr # 0792076
product price:  $247.37
/ea
Legend Valve 4" S-640 PVC BACKWATER VALVE 202-254
Legend Valve

4" S-640 PVC BACKWATER VALVE

Zoro # G2836330
Mfr # 202-254
product price:  $55.29
/ea
Watts Reduced Pressure Zone Backflow Preventer 1/2 LF009-QT-FS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G611853894
Mfr # 1/2 LF009-QT-FS
product price:  $634.99
/ea
Watts 3/4 In Lead-Free Reduced Pressure Zone Backflow Preventer Assembly 88004111
Watts

3/4 In Lead-Free Reduced Pressure Zone Backflow Preventer Assembly

Zoro # G512414903
Mfr # 88004111
product price:  $713.99
/ea
Watts Reduced Pressure Zone, Watt009, 1/2in, FNPT 009-QT-SH
Watts

Reduced Pressure Zone, Watt009, 1/2in, FNPT

Zoro # G1686627
Mfr # 009-QT-SH
product price:  $642.99
/ea
Watts Backflow Preventor, 2-1/2" 2-1/2" LF009-OSY
Watts

Backflow Preventor, 2-1/2"

Zoro # G7270492
Mfr # 2-1/2" LF009-OSY
product price:  $4,418.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 3-375A
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G2844396
Mfr # 3-375A
product price:  $5,917.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 957-OSY3
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G0499231
Mfr # 957-OSY3
product price:  $4,592.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 957-OSY 4"
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G2221572
Mfr # 957-OSY 4"
product price:  $5,670.99
/ea
Legend Valve 1/2" S-459 BACKFLOW PRVENTER 115-117
Legend Valve

1/2" S-459 BACKFLOW PRVENTER

Zoro # G1780855
Mfr # 115-117
product price:  $55.15
/ea
Apollo Valves Double Check Backflow Preventer, 1 1/2 in 4A107A2F
Apollo Valves

Double Check Backflow Preventer, 1 1/2 in

Zoro # G409843496
Mfr # 4A107A2F
product price:  $504.99
/ea
Apollo Valves Reduced Pressure Zone Backflow Preventer 4ALF206T2F
Apollo Valves

Reduced Pressure Zone Backflow Preventer

Zoro # G5151641
Mfr # 4ALF206T2F
product price:  $848.99
/ea
Apollo Valves Backflow, NPT x NPT, 3/4in, Forged Brass 4A4A44AM
Apollo Valves

Backflow, NPT x NPT, 3/4in, Forged Brass

Zoro # G3779006
Mfr # 4A4A44AM
product price:  $67.45
/ea
Watts Backflow Preventer, Size 1", 175 psi 1 009M2-QT
Watts

Backflow Preventer, Size 1", 175 psi

Zoro # G005303646
Mfr # 1 009M2-QT
product price:  $1,002.99
/ea
Watts 3/4 NPT BlackFlow Preventer 9D-M2
Watts

3/4 NPT BlackFlow Preventer

Zoro # G715674180
Mfr # 9D-M2
product price:  $149.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 212-375A
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G3425606
Mfr # 212-375A
product price:  $5,783.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 3/4 LF009M3-QT-FS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G711854036
Mfr # 3/4 LF009M3-QT-FS
product price:  $978.99
/ea
Febco Reduced Pressure Zone Backflow Preventer 2 LF825YA-QT RP
Febco

Reduced Pressure Zone Backflow Preventer

Zoro # G213990744
Mfr # 2 LF825YA-QT RP
product price:  $2,454.99
/ea
Watts Backflow Preventer, Size 2", 175 psi 2 LF009M2-QT-S
Watts

Backflow Preventer, Size 2", 175 psi

Zoro # G905303678
Mfr # 2 LF009M2-QT-S
product price:  $1,811.99
/ea
Apollo Valves Reduced Pressure Zone Backflow Preventer 4ALF208T2F
Apollo Valves

Reduced Pressure Zone Backflow Preventer

Zoro # G5151623
Mfr # 4ALF208T2F
product price:  $1,049.99
/ea
Watts Backflow Preventer, Size 3/4", 175 psi 3/4 009M3-QT
Watts

Backflow Preventer, Size 3/4", 175 psi

Zoro # G105303683
Mfr # 3/4 009M3-QT
product price:  $748.99
/ea
Backflow Preventers (624 items) - Page 2
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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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backflow check preventer6" threaded pipe cap1-1/2 in backflow preventer4 in backflow preventerhose connection vacuum breaker

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