Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Deals
  • Contact Us
Added to Cart
Skip to Main Content Accessibility Statement
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Support
0
0
Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Plumbing
  4. /
  5. Pipes, Valves & Fittings
  6. /
  7. Valves
  8. /
  9. Backflow Preventers

Backflow Preventers (615 items) - Page 14

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
Wilkins Reduced Pressure Principle Backflow 2-975XL2U
Wilkins

Reduced Pressure Principle Backflow

Zoro # G7737735
Mfr # 2-975XL2U
product price: 
$2,511.99
/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
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
No Product Image Available
Wilkins

Double Check Backflow Preventer

Zoro # G213342550
Mfr # 8-350A
product price: 
$10,774.99
/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
Oatey 4 PVC Backwater Valve 43904
Oatey

4 PVC Backwater Valve

Zoro # G908178549
Mfr # 43904
product price: 
$46.59
/ea
Sold in mult. of 2 for $93.18
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 Reduced Pressure Principle Backflow Prev 6-375AOSY
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7503874
Mfr # 6-375AOSY
product price: 
$13,079.99
/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 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 Winterization Flush Tube RK34-900XL3WF
Wilkins

Winterization Flush Tube

Zoro # G612481799
Mfr # RK34-900XL3WF
product price: 
$41.89
/ea
Everflow 5/8" x 7/8" Plastic Air Gap W/ Chrome Cap for Dishwasher Valve P18203
Everflow

5/8" x 7/8" Plastic Air Gap W/ Chrome Cap for Dishwasher Valve

Zoro # G601748247
Mfr # P18203
product price: 
$6.75
/ea
Sold in mult. of 2 for $13.50
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 Temperature and Pressure Relieve Valve TP1100A-4C-75C
Wilkins

Temperature and Pressure Relieve Valve

Zoro # G7737324
Mfr # TP1100A-4C-75C
product price: 
$48.89
/ea
Wilkins Reduced Pressure Principle Backflow Prev 8-375ASTOSY
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7737832
Mfr # 8-375ASTOSY
product price: 
$25,064.99
/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 Tcu Fast Test Lead Free 3/4" 975Xl2 34-975XL2TCUFT
Wilkins

Tcu Fast Test Lead Free 3/4" 975Xl2

Zoro # G8668430
Mfr # 34-975XL2TCUFT
product price: 
$1,188.99
/ea
Wilkins Double Check Backflow Preventer 114-950X 114-950XLT2
Wilkins

Double Check Backflow Preventer 114-950X

Zoro # G7736825
Mfr # 114-950XLT2
product price: 
$1,294.99
/ea
Oatey ABS Backwater Valve, 3" 43901
Oatey

ABS Backwater Valve, 3"

Zoro # G7712498
Mfr # 43901
product price: 
$51.29
/ea
Sold in mult. of 4 for $205.16
Wilkins Reduced Pressure Principle Backflow Prev 4-375AST
Wilkins

Reduced Pressure Principle Backflow Prev

Zoro # G7513175
Mfr # 4-375AST
product price: 
$6,721.99
/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: 
$106.99
/ea
Wilkins Double Check Detector Backflow Preventer 4-350ASTDA
Wilkins

Double Check Detector Backflow Preventer

Zoro # G7511111
Mfr # 4-350ASTDA
product price: 
$7,592.99
/ea
Watts Air Gap For 2-1/2 To 10 In 957 Series 0111764
Watts

Air Gap For 2-1/2 To 10 In 957 Series

Zoro # G312468151
Mfr # 0111764
product price: 
$356.99
/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
Wilkins W/Union Bv Non-Potable 3/4" 975Xl 34-975XLU
Wilkins

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

Zoro # G8668324
Mfr # 34-975XLU
product price: 
$4,973.99
/ea
Watts Double check backflow preventer 3/4 LF007M3-QT-FZ-w/press
Watts

Double check backflow preventer

Zoro # G811853915
Mfr # 3/4 LF007M3-QT-FZ-w/press
product price: 
$715.99
/ea
Watts Reduced Pressure Zone Backflow Preventer 3/4 LF009M3-QTw/press-FS
Watts

Reduced Pressure Zone Backflow Preventer

Zoro # G311853804
Mfr # 3/4 LF009M3-QTw/press-FS
product price: 
$1,153.32
/ea
Watts Double check backflow preventer 1/2LF007-QT-FZ-w/press
Watts

Double check backflow preventer

Zoro # G511853802
Mfr # 1/2LF007-QT-FZ-w/press
product price: 
$539.99
/ea
Watts SHUTOFF VALVE F391012
Watts

SHUTOFF VALVE

Zoro # G222824498
Mfr # F391012
product price: 
$6,346.99
/ea
No Product Image Available
Wilkins

Double Check Backflow Preventer, Bronze

Zoro # G113342469
Mfr # 114-350XLFT
product price: 
$1,132.99
/ea
Watts Fill Valve/Backflow Prvntr, 1/2", 0386462 0386462
Watts

Fill Valve/Backflow Prvntr, 1/2", 0386462

Zoro # G9548773
Mfr # 0386462
product price: 
$441.99
/ea
Wilkins 6in 450 DC SS Body N Pattern NRS Gates Flng X Flng 6-450ST
Wilkins

6in 450 DC SS Body N Pattern NRS Gates Flng X Flng

Zoro # G015797176
Mfr # 6-450ST
product price: 
$14,843.99
/ea
Wilkins 4in 450 DC SS Body N Pattern NRS Gates Flng X Flng 4-450ST
Wilkins

4in 450 DC SS Body N Pattern NRS Gates Flng X Flng

Zoro # G315797173
Mfr # 4-450ST
product price: 
$10,053.07
/ea
Wilkins 1 In Reduced Pressure Principle Assembly, Fnpt X Fnpt 1-975XLSE
Wilkins

1 In Reduced Pressure Principle Assembly, Fnpt X Fnpt

Zoro # G712414826
Mfr # 1-975XLSE
product price: 
$1,931.99
/ea
Wilkins 3in 375A RP W/Wireless Monitor DI Body NRS Gates FLG X FLG 3-375AW1
Wilkins

3in 375A RP W/Wireless Monitor DI Body NRS Gates FLG X FLG

Zoro # G315797166
Mfr # 3-375AW1
product price: 
$6,844.99
/ea
Backflow Preventers (615 items) - Page 14
  • First
  • Previous
  • 14
    of 18 pages
  • Next
  • Last
How was your search?

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 ValvesSolenoid ValvesRelief ValvesPVC Pipe Fittings
Stainless Steel Pipe FittingsCompression Tube FittingsBlack Pipe FittingsBrass Pipe FittingsPipe Insulation
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

Sign up and save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every part plays a part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Deals
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research
  • Tax Exemption

Zoro, Inc

Connect

Customer service from real people

  • Phone: (855) 289-9676
  • Contact Us

© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc