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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
  8. /
  9. Backflow Preventers

Backflow Preventers (622 items) - Page 13

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 Reduced Pressure Principle Backflow Prev 34-975XL2FT
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7504443
Mfr # 34-975XL2FT
product price:  $1,077.99
/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
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 Reduced Pressure Principle Backflow Prev 1-975XL2S
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7737482
Mfr # 1-975XL2S
product price:  $1,273.99
/ea
Wilkins Double Check Backflow Preventer 2-350Xlf 2-350XLFT
Wilkins

Double Check Backflow Preventer 2-350Xlf

Zoro # G7738079
Mfr # 2-350XLFT
product price:  $1,442.99
/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
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
Wilkins Reduced Pressure Principle Backflow 2-975XL2U
Wilkins

Reduced Pressure Principle Backflow

Zoro # G7737735
Mfr # 2-975XL2U
product price:  $2,511.99
/ea
Wilkins Temperature and Pressure Relieve Valve TP1100A-4C-175C
Wilkins

Temperature and Pressure Relieve Valve

Zoro # G7736913
Mfr # TP1100A-4C-175C
product price:  $48.79
/ea
Wilkins Reduced Pressure Detector Assembly 6-375ADA
Wilkins

Reduced Pressure Detector Assembly

Zoro # G7738200
Mfr # 6-375ADA
product price:  $14,921.99
/ea
Rain Bird HT075BFFSM Backflow Preventer, FHT Inlet, 20 gpm, ABS HT075BFFSX
Rain Bird

HT075BFFSM Backflow Preventer, FHT Inlet, 20 gpm, ABS

Zoro # G507669110
Mfr # HT075BFFSX
product price:  $11.19
/ea
Thrifco Plumbing 4 Inch ABS Backwater Valve with DWV Hubs 6415309
Thrifco Plumbing

4 Inch ABS Backwater Valve with DWV Hubs

Zoro # G009546087
Mfr # 6415309
product price:  $81.15
/ea
Apollo Valves DCLF4A, 2in, LF BRZ, WITH BV 4ALF108A2
Apollo Valves

DCLF4A, 2in, LF BRZ, WITH BV

Zoro # G422710881
Mfr # 4ALF108A2
product price:  $1,009.99
/ea
Zurn 3/4in Hose Adaptor 304SS Backflow Preventor w/Polybag PN 669553499 Z1399XL-BFP
Zurn

3/4in Hose Adaptor 304SS Backflow Preventor w/Polybag PN 669553499

Zoro # G315819462
Mfr # Z1399XL-BFP
product price:  $118.99
/ea
Wilkins Reduced Pressure Detector Assembly 6-375ASTDA
Wilkins

Reduced Pressure Detector Assembly

Zoro # G8667624
Mfr # 6-375ASTDA
product price:  $14,921.99
/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:  $4,381.99
/ea
Wilkins Lead Free 1/2" 375Xl W/Ft 12-375XLFT
Wilkins

Lead Free 1/2" 375Xl W/Ft

Zoro # G7738182
Mfr # 12-375XLFT
product price:  $910.99
/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 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 Winterization Flush Tube RK34-900XL3WF
Wilkins

Winterization Flush Tube

Zoro # G612481799
Mfr # RK34-900XL3WF
product price:  $41.89
/ea
Wilkins W/Ft Lead Free 1-1/2" 375Xl 112-375XLFT
Wilkins

W/Ft Lead Free 1-1/2" 375Xl

Zoro # G7737589
Mfr # 112-375XLFT
product price:  $1,727.99
/ea
Wilkins W/Sxl Ag-5 L.F. 1-1/4" 975Xl2 114-975XL2SAG
Wilkins

W/Sxl Ag-5 L.F. 1-1/4" 975Xl2

Zoro # G7736895
Mfr # 114-975XL2SAG
product price:  $2,387.99
/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
Kingston Brass KA831PB Dishwasher Air Gap, Polished Brass KA831PB
Kingston Brass

KA831PB Dishwasher Air Gap, Polished Brass

Zoro # G702886633
Mfr # KA831PB
product price:  $57.15
/ea
Wilkins Temperature and Pressure Relieve Valve TP1100A-4C-75C
Wilkins

Temperature and Pressure Relieve Valve

Zoro # G7737324
Mfr # TP1100A-4C-75C
product price:  $48.79
/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
Oatey 4'' PVC Backwater Valve 43904
Oatey

4'' PVC Backwater Valve

Zoro # G721869761
Mfr # 43904
product price:  $61.29
/ea
Wilkins Rpp Assy W/Ag-11 Non-Potable 3/4" 375 34-375AG
Wilkins

Rpp Assy W/Ag-11 Non-Potable 3/4" 375

Zoro # G8669243
Mfr # 34-375AG
product price:  $658.99
/ea
Wilkins Reduced Pressure Principle Backflow Prev 4-375ASTOSY
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7508969
Mfr # 4-375ASTOSY
product price:  $8,379.99
/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
Thrifco Plumbing 14 Inch Anti-Siphon Frost Free Sillcock, 1/2 Inch MIP x 1/2 Inc 6417097
Thrifco Plumbing

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

Zoro # G309548118
Mfr # 6417097
product price:  $46.59
/ea
Wilkins Reduced Pressure Principle Backflow Prev 6-375
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7510280
Mfr # 6-375
product price:  $12,487.99
/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
Wilkins Reduced Pressure Principle Backflow Prev 3-375ASTOSY
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7512195
Mfr # 3-375ASTOSY
product price:  $6,474.99
/ea
Backflow Preventers (622 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.

Related Categories

Ball ValvesCheck ValvesPressure Reducing ValvesBackflow Preventer Repair KitsPVC Pipe Fittings
Camlock FittingsPress-Fit Tube FittingsCopper FittingsPipe & Tube ClampsBlack Pipe Fittings
4 in no hubwatts back-flow preventerwatts series 009 3/4175 psi pressure switch1-1/2 in backflow preventer
hose connection vacuum breaker1 inch backflow4 in backflow preventer6" threaded pipe capbackflow check

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