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  1. Home
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  5. Pipes, Valves & Fittings
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  7. Valves
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  9. Backflow Preventers
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Backflow Preventers (650 items) - Page 9

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 Dual Check with Vent, Watts9BD, 3/8in, MNPT 9BD
Watts

Dual Check with Vent, Watts9BD, 3/8in, MNPT

Zoro # G1686706
Mfr # 9BD
product price:  $720.99
/ea
Watts Backflow Preventer, Size 2", 150 psi 2 LF800M4-FR
Watts

Backflow Preventer, Size 2", 150 psi

Zoro # G405303734
Mfr # 2 LF800M4-FR
product price:  $1,703.99
/ea
Watts Double Check Valve, Watts 719, 1in, FNPT LF719-QT-S
Watts

Double Check Valve, Watts 719, 1in, FNPT

Zoro # G1686679
Mfr # LF719-QT-S
product price:  $792.99
/ea
Watts Double check backflow preventer 1 1/2 LF007M2-QT-FZ
Watts

Double check backflow preventer

Zoro # G111853820
Mfr # 1 1/2 LF007M2-QT-FZ
product price:  $1,306.99
/ea
Febco Reduced Pressure Zone Backflow Preventer 1LF825YAQTRP
Febco

Reduced Pressure Zone Backflow Preventer

Zoro # G813990717
Mfr # 1LF825YAQTRP
product price:  $1,376.99
/ea
Wilkins Backflow Preventer, 3/4 in. Size, Bronze 34-375XLB
Wilkins

Backflow Preventer, 3/4 in. Size, Bronze

Zoro # G2373485
Mfr # 34-375XLB
product price:  $931.99
/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 Backflow Preventer, 2 in, FNPT 2-975XL2TCUFT
Wilkins

Backflow Preventer, 2 in, FNPT

Zoro # G308230076
Mfr # 2-975XL2TCUFT
product price:  $2,318.99
/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
Wilkins Reduced Pressure Zone Backflow Preventer 12-975XL2
Wilkins

Reduced Pressure Zone Backflow Preventer

Zoro # G5064473
Mfr # 12-975XL2
product price:  $1,031.99
/ea
Wilkins Backflow Preventer1"Size F Flange175 psi 1-350XL
Wilkins

Backflow Preventer1"Size F Flange175 psi

Zoro # G3952879
Mfr # 1-350XL
product price:  $491.99
/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:  $446.99
/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 Backflow Preventer, Size 1 1/4", 150 psi 1 1/4 LF800M4-QT
Watts

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

Zoro # G305303766
Mfr # 1 1/4 LF800M4-QT
product price:  $898.00
/ea
Watts ReducedPressureZone, 994, 2-1/2in, Flanged 994-NRS
Watts

ReducedPressureZone, 994, 2-1/2in, Flanged

Zoro # G2198966
Mfr # 994-NRS
product price:  $4,212.99
/ea
Watts Double Check Valve, W774, 4in, 27-1/4inH 774-OSY
Watts

Double Check Valve, W774, 4in, 27-1/4inH

Zoro # G2199307
Mfr # 774-OSY
product price:  $5,951.99
/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
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
Wilkins 2-950XLTDA - 2" 950XLTDA Double Check Detector Backflow Preventer 2-950XLTDA
Wilkins

2-950XLTDA - 2" 950XLTDA Double Check Detector Backflow Preventer

Zoro # G2390852
Mfr # 2-950XLTDA
product price:  $6,601.99
/ea
Wilkins Double Check Backflow Preventer 6-350A
Wilkins

Double Check Backflow Preventer

Zoro # G813342509
Mfr # 6-350A
product price:  $9,264.99
/ea
Jones Stephens 2in. ABS Backwater Valve B05200
Jones Stephens

2in. ABS Backwater Valve

Zoro # G212105460
Mfr # B05200
product price:  $38.95
/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
Wilkins Backflow Preventer, 1 1/4 in, FNPT 114-975XL3
Wilkins

Backflow Preventer, 1 1/4 in, FNPT

Zoro # G608230073
Mfr # 114-975XL3
product price:  $1,713.99
/ea
Watts Backflow Preventer, Size 1 1/4", 175 psi 1 1/4 009M2-QT
Watts

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

Zoro # G705303656
Mfr # 1 1/4 009M2-QT
product price:  $1,348.99
/ea
Watts Double Check Valve Assembly, 25 3/4" L 3/4 LF007M3-QT-S-FZ
Watts

Double Check Valve Assembly, 25 3/4" L

Zoro # G510854510
Mfr # 3/4 LF007M3-QT-S-FZ
product price:  $648.92
/ea
Wilkins Backflow Preventer, 2 in, FNPT 2-975XL2SEU
Wilkins

Backflow Preventer, 2 in, FNPT

Zoro # G008230086
Mfr # 2-975XL2SEU
product price:  $2,886.99
/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:  $2,138.99
/ea
Moen Air Switch Black Stainless AS-4201-BLS
Moen

Air Switch Black Stainless

Zoro # G600916197
Mfr # AS-4201-BLS
product price:  $26.89
/ea
Watts Backflow Preventer, Size 3/4", 125 psi 3/4 188A
Watts

Backflow Preventer, Size 3/4", 125 psi

Zoro # G405303697
Mfr # 3/4 188A
product price:  $204.99
/ea
Wilkins 4in 475 RP SS Body N Pattern NRS Gates Flng X Flng 4-475ST
Wilkins

4in 475 RP SS Body N Pattern NRS Gates Flng X Flng

Zoro # G115797151
Mfr # 4-475ST
product price:  $10,222.99
/ea
Wilkins Reduced Pressure Principle Backflow Prev 34-375ST
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7513455
Mfr # 34-375ST
product price:  $3,679.99
/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
Wilkins 6in 475 RPDA SS Body N Pattern OSY Gates Flng X Flng 6-475STDA
Wilkins

6in 475 RPDA SS Body N Pattern OSY Gates Flng X Flng

Zoro # G815797147
Mfr # 6-475STDA
product price:  $21,781.99
/ea
No Product Image Available
Apollo Valves

Dual Check Backflow Preventer, 1/4 in

Zoro # G909984682
Mfr # 4C10101A
product price:  $104.99
/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
Backflow Preventers (650 items) - Page 9
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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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4 in no hubwatts back-flow preventerbackflow check175 psi pressure switch1-1/2 in backflow preventer

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