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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 (621 items) - Page 3

Watts 3/4 IN Lead Free Double Check Valve Backflow Preventer Assembly T063231
Watts

3/4 IN Lead Free Double Check Valve Backflow Preventer Assembly

Zoro # G916500998
Mfr # T063231
product price:  $485.99
/ea
Wilkins Backflow Preventer, 1/2 in. Size, Bronze 12-375XLB
Wilkins

Backflow Preventer, 1/2 in. Size, Bronze

Zoro # G2373491
Mfr # 12-375XLB
product price:  $485.99
/ea
Watts Reduced Pressure Zone Assembly, 175 psi LF909-DOSY-FS
Watts

Reduced Pressure Zone Assembly, 175 psi

Zoro # G604393116
Mfr # LF909-DOSY-FS
product price:  $10,477.99
/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:  $2,528.99
/ea
Wilkins 2-375DA - 2" 375DA Reduced Pressure Detector Backflow Preventer 2-375DA
Wilkins

2-375DA - 2" 375DA Reduced Pressure Detector Backflow Preventer

Zoro # G2391920
Mfr # 2-375DA
product price:  $4,309.99
/ea
Watts Reduced Pressure Zone, Watt009, 3/4in, FNPT 009M3-QT-SH
Watts

Reduced Pressure Zone, Watt009, 3/4in, FNPT

Zoro # G1686618
Mfr # 009M3-QT-SH
product price:  $812.99
/ea
Apollo Valves Dual Check Valve w/ Port, Brass, 3/4", FNPT 4A4A44AM
Apollo Valves

Dual Check Valve w/ Port, Brass, 3/4", FNPT

Zoro # G3779006
Mfr # 4A4A44AM
product price:  $67.45
/ea
Legend Valve 1-1/2 S-640 BACKWATER VALVE 202-251
Legend Valve

1-1/2 S-640 BACKWATER VALVE

Zoro # G2837450
Mfr # 202-251
product price:  $37.69
/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
Caleffi 573002A 1/2" Npt Inlet 573002A
Caleffi

573002A 1/2" Npt Inlet

Zoro # G6924785
Mfr # 573002A
product price:  $183.99
/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
Febco Reduced Pressure Zone Backflow Preventer 1 1/2 LF825YA-QT-RP-FS
Febco

Reduced Pressure Zone Backflow Preventer

Zoro # G913990679
Mfr # 1 1/2 LF825YA-QT-RP-FS
product price:  $2,284.99
/ea
Watts Reduced Pressure Zone Assembly, 1in. Size 1 LF009M2-QT-PRESS
Watts

Reduced Pressure Zone Assembly, 1in. Size

Zoro # G4016402
Mfr # 1 LF009M2-QT-PRESS
product price:  $1,031.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 1/2 SS009M3QT
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G0711006
Mfr # 1/2 SS009M3QT
product price:  $2,749.99
/ea
Wilkins Backflow Preventer, Wilkins 975XL2 Series 38-975XL2
Wilkins

Backflow Preventer, Wilkins 975XL2 Series

Zoro # G9967483
Mfr # 38-975XL2
product price:  $890.99
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 1-375XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5064482
Mfr # 1-375XL
product price:  $983.99
/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:  $55.19
/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:  $675.99
/ea
Wilkins Double Check Valve Assembly 2" 950Xl 2-950XL
Wilkins

Double Check Valve Assembly 2" 950Xl

Zoro # G7737823
Mfr # 2-950XL
product price:  $40,525.99
/ea
Watts Backflow Preventer, Size 3/4", 175 psi 3/4X3/4 LF7RU2-U2
Watts

Backflow Preventer, Size 3/4", 175 psi

Zoro # G905303609
Mfr # 3/4X3/4 LF7RU2-U2
product price:  $164.99
/ea
Watts Backflow Preventer, Size 1 1/4", 150 psi 1 1/4 800M4-QT
Watts

Backflow Preventer, Size 1 1/4", 150 psi

Zoro # G505303603
Mfr # 1 1/4 800M4-QT
product price:  $881.99
/ea
Watts 1 1/2 IN Lead Free Double Check Valve Backflow Preventer Assembly T063234
Watts

1 1/2 IN Lead Free Double Check Valve Backflow Preventer Assembly

Zoro # G516501012
Mfr # T063234
product price:  $1,158.99
/ea
Apollo Valves Double Check Valve Assembly, Size 3/4 In. 4ALF104A2F
Apollo Valves

Double Check Valve Assembly, Size 3/4 In.

Zoro # G5151562
Mfr # 4ALF104A2F
product price:  $247.99
/ea
Legend Valve 3" S-641 BACKWATER W/SLEEVE 202-263
Legend Valve

3" S-641 BACKWATER W/SLEEVE

Zoro # G2836324
Mfr # 202-263
product price:  $58.55
/ea
Wilkins Reduced Pressure Zone Backflow Preventer 114-975XL
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G1170802
Mfr # 114-975XL
product price:  $1,513.99
/ea
Watts Reduced pressure zone backflow preventer 11/2 LF009-QT-FS
Watts

Reduced pressure zone backflow preventer

Zoro # G314479698
Mfr # 11/2 LF009-QT-FS
product price:  $1,368.99
/ea
Wilkins Backflow Preventer2"Size F Flange175 psi 2-350
Wilkins

Backflow Preventer2"Size F Flange175 psi

Zoro # G3952930
Mfr # 2-350
product price:  $1,077.99
/ea
Watts Lead Free .75 Backflow Preventer LF009M3QT .75
Watts

Lead Free .75 Backflow Preventer

Zoro # G515674083
Mfr # LF009M3QT .75
product price:  $727.99
/ea
Watts Backflow Preventer, Size 1", 175 psi 1 SS009-QT
Watts

Backflow Preventer, Size 1", 175 psi

Zoro # G905303616
Mfr # 1 SS009-QT
product price:  $5,187.99
/ea
Watts Backflow Preventer, Size 1/2", 125 psi 1/2 LFN9-C
Watts

Backflow Preventer, Size 1/2", 125 psi

Zoro # G605303602
Mfr # 1/2 LFN9-C
product price:  $490.99
/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 Backflow Preventer, Size 1 1/2", 175 psi 1 1/2 LF009M2-QT-S
Watts

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

Zoro # G205303668
Mfr # 1 1/2 LF009M2-QT-S
product price:  $1,781.99
/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
Oatey 3'' PVC Backwater Valve 43900
Oatey

3'' PVC Backwater Valve

Zoro # G221875422
Mfr # 43900
product price:  $43.19
/ea
Watts 3/4 In Lead-Free Double Check Valve Backflow Preventer Assembly 0063231
Watts

3/4 In Lead-Free Double Check Valve Backflow Preventer Assembly

Zoro # G812414931
Mfr # 0063231
product price:  $474.98
/ea
Wilkins Double Check Backflow Preventer 3-350A
Wilkins

Double Check Backflow Preventer

Zoro # G113342551
Mfr # 3-350A
product price:  $4,922.99
/ea
Backflow Preventers (621 items) - Page 3
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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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