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  1. Home
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  3. Plumbing
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  5. Pipes, Valves & Fittings
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  7. Valves
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  9. Backflow Preventers

Backflow Preventers (615 items) - Page 13

Watts Double CheckValve, Watts709, 23-13/16inH LF709-NRS
Watts

Double CheckValve, Watts709, 23-13/16inH

Zoro # G2199465
Mfr # LF709-NRS
product price: 
$28,253.99
/ea
Watts Double Check Detector, 774, 4in, 22-3/4inH 774DCDA-OSY-CFM
Watts

Double Check Detector, 774, 4in, 22-3/4inH

Zoro # G2199088
Mfr # 774DCDA-OSY-CFM
product price: 
$6,134.99
/ea
Watts 1/4 In Dual Check Valve Backflow Preventer With Atmospheric Port & Strainer, Female Npt 0061666
Watts

1/4 In Dual Check Valve Backflow Preventer With Atmospheric Port & Strainer, Female Npt

Zoro # G512414835
Mfr # 0061666
product price: 
$679.99
/ea
Wilkins W/Ubv Se Lead Free 3/4" 975Xl2 34-975XL2SEU
Wilkins

W/Ubv Se Lead Free 3/4" 975Xl2

Zoro # G8668701
Mfr # 34-975XL2SEU
product price: 
$1,798.99
/ea
Wilkins W/Ubv Lead Free 3/4" 975Xl2 34-975XL2U
Wilkins

W/Ubv Lead Free 3/4" 975Xl2

Zoro # G8667469
Mfr # 34-975XL2U
product price: 
$1,197.99
/ea
Wilkins FCIS 1-1/4in LF Bronze 975XL2 NPT ZW206 Norm Op 114-FCIS
Wilkins

FCIS 1-1/4in LF Bronze 975XL2 NPT ZW206 Norm Op

Zoro # G215819395
Mfr # 114-FCIS
product price: 
$13,688.99
/ea
Wilkins Reduced Pressure Principle Backflow Prev 34-975XL2S
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7504434
Mfr # 34-975XL2S
product price: 
$1,193.99
/ea
Tool Time 58ABP .75 in. Backflow Preventer TO571449
Tool Time

58ABP .75 in. Backflow Preventer

Zoro # G803793038
Mfr # TO571449
product price: 
$26.69
/ea
Oatey ABS Backwater Valve, 4" 43905
Oatey

ABS Backwater Valve, 4"

Zoro # G7701307
Mfr # 43905
product price: 
$59.39
/ea
Sold in mult. of 2 for $118.78
Kingston Brass KA821BN Dishwasher Air Gap, Brushed Nickel KA821BN
Kingston Brass

KA821BN Dishwasher Air Gap, Brushed Nickel

Zoro # G202886607
Mfr # KA821BN
product price: 
$52.99
/ea
Wilkins Double Check Backflow Preventer 6-350Ast 6-350ASTOSY
Wilkins

Double Check Backflow Preventer 6-350Ast

Zoro # G7505800
Mfr # 6-350ASTOSY
product price: 
$9,619.99
/ea
Wilkins Temperature and Pressure Relieve Valve TP1100A-4C-175C
Wilkins

Temperature and Pressure Relieve Valve

Zoro # G7736913
Mfr # TP1100A-4C-175C
product price: 
$51.29
/ea
Wilkins FCIS 2in LF Bronze 975XL2 NPT ZW206 Norm Op 2-FCIS
Wilkins

FCIS 2in LF Bronze 975XL2 NPT ZW206 Norm Op

Zoro # G815819481
Mfr # 2-FCIS
product price: 
$13,993.99
/ea
Wilkins Double Check Backflow Preventer 1-950Xlt 1-950XLT2FT
Wilkins

Double Check Backflow Preventer 1-950Xlt

Zoro # G7738289
Mfr # 1-950XLT2FT
product price: 
$534.99
/ea
Wilkins FCIS 6in SS 375 NRS Gate Grv x Flg ZW206 Norm Op 6-FCISAST
Wilkins

FCIS 6in SS 375 NRS Gate Grv x Flg ZW206 Norm Op

Zoro # G615797170
Mfr # 6-FCISAST
product price: 
$26,731.99
/ea
Wilkins 2in 975 RP BFLY w/Switch NPT Y Pattern Non Potable 2-975XLBFSS
Wilkins

2in 975 RP BFLY w/Switch NPT Y Pattern Non Potable

Zoro # G115797182
Mfr # 2-975XLBFSS
product price: 
$4,161.99
/ea
Wilkins Reduced Pressure Detector Backflow Preve 6-375DA
Wilkins

Reduced Pressure Detector Backflow Preve

Zoro # G7506324
Mfr # 6-375DA
product price: 
$14,921.99
/ea
Wilkins W/Ubv Se Lead Free 1-1/4" 975Xl2 114-975XL2SEU
Wilkins

W/Ubv Se Lead Free 1-1/4" 975Xl2

Zoro # G7736843
Mfr # 114-975XL2SEU
product price: 
$2,532.99
/ea
Wilkins FCIS 4in SS 375 NRS Gate Grv x Flg ZW206 Norm Op 4-FCISAST
Wilkins

FCIS 4in SS 375 NRS Gate Grv x Flg ZW206 Norm Op

Zoro # G615797163
Mfr # 4-FCISAST
product price: 
$17,082.99
/ea
Wilkins W/Union Bv W/S Non-Potable 3/4" 975Xl 34-975XLUS
Wilkins

W/Union Bv W/S Non-Potable 3/4" 975Xl

Zoro # G8666629
Mfr # 34-975XLUS
product price: 
$764.99
/ea
Zurn BACKFLOW PREVENTER QHWBP3
Zurn

BACKFLOW PREVENTER

Zoro # G015798821
Mfr # QHWBP3
product price: 
$60.39
/ea
Thrifco Plumbing 12 Inch Anti-Siphon Frost Free Sillcock, 1/2 Inch MIP x 1/2 Inc 6417096
Thrifco Plumbing

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

Zoro # G709548183
Mfr # 6417096
product price: 
$41.79
/ea
Wilkins Tc Up Lead Free 1" 975Xl2 1-975XL2TCU
Wilkins

Tc Up Lead Free 1" 975Xl2

Zoro # G7737169
Mfr # 1-975XL2TCU
product price: 
$1,245.99
/ea
Wilkins Reduced Pressure Principle Backflow Prev 4-375ASTDA
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7506464
Mfr # 4-375ASTDA
product price: 
$10,365.99
/ea
Oatey ABS Backwater Valve, 6" 43909
Oatey

ABS Backwater Valve, 6"

Zoro # G7701289
Mfr # 43909
product price: 
$209.99
/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
Wilkins Reduced Pressure Detector Assembly 6-375AST
Wilkins

Reduced Pressure Detector Assembly

Zoro # G7737220
Mfr # 6-375AST
product price: 
$13,665.99
/ea
Wilkins Pressure Principle Backflow Preventer 21 212-375AST
Wilkins

Pressure Principle Backflow Preventer 21

Zoro # G7736834
Mfr # 212-375AST
product price: 
$5,783.99
/ea
Wilkins Reduced Pressure Detector Assembly 6-375ADA
Wilkins

Reduced Pressure Detector Assembly

Zoro # G7738200
Mfr # 6-375ADA
product price: 
$14,921.99
/ea
Moen Moen 105895ORB Plastic and Metal Air Gap 105895ORB
Moen

Moen 105895ORB Plastic and Metal Air Gap

Zoro # G400916748
Mfr # 105895ORB
product price: 
$38.79
/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
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: 
$68.95
/ea
Resideo Backflow Preventer. 1/2In NPT. 175 Psi M BP900
Resideo

Backflow Preventer. 1/2In NPT. 175 Psi M

Zoro # G716056428
Mfr # BP900
product price: 
$83.29
/ea
Watts 3/4in Backflow Preventor Reduced Press 3/4 LF909QT
Watts

3/4in Backflow Preventor Reduced Press

Zoro # G615700705
Mfr # 3/4 LF909QT
product price: 
$2,902.99
/ea
Wilkins Double Check Backflow Preventer 34-950Xl 34-950XLT2FT
Wilkins

Double Check Backflow Preventer 34-950Xl

Zoro # G7513239
Mfr # 34-950XLT2FT
product price: 
$486.99
/ea
Wilkins W/Bv W/Str Lead Free 1 1/4" 975Xl2 114-975XL2S
Wilkins

W/Bv W/Str Lead Free 1 1/4" 975Xl2

Zoro # G7736870
Mfr # 114-975XL2S
product price: 
$2,175.99
/ea
Backflow Preventers (615 items) - Page 13
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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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watts series 009 3/41-1/2 in backflow preventerhose connection vacuum breaker1 inch backflowbackflow check preventer

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