Shop Backflow Preventers Explained

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$612.65
Zurn Wilkins 1-375XL 1" 375XL Reduced Pressure Principle Backflow Preventer
Amazon.com
47
Free shipping
$612.65
Zurn Wilkins 1-375XL 1" 375XL Reduced Pressure Principle Backflow Preventer
Amazon.com
47
$504.56
$534.26
Zurn Wilkins 34-975XL 3/4" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
379
Free shipping
$504.56
$534.26
Zurn Wilkins 34-975XL 3/4" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
379
$592.45
Febco 825Y Series 1" Bronze Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Shutoff, NPT End Connections, Y Pattern, Flood Sensor With
Amazon.com
1
Free shipping
$592.45
Febco 825Y Series 1" Bronze Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Shutoff, NPT End Connections, Y Pattern, Flood Sensor With
Amazon.com
1
$566.55
Zurn Wilkins 1-375 1" 375 Reduced Pressure Principle Backflow Preventer
Amazon.com
108
Free shipping
$566.55
Zurn Wilkins 1-375 1" 375 Reduced Pressure Principle Backflow Preventer
Amazon.com
108
$665.92
Zurn Wilkins 1-975XL 1" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
379
Free shipping
$665.92
Zurn Wilkins 1-975XL 1" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
379
$399.94
Watts 3/4" 009M3 Backflow Preventer Reduced Pressure Zone Assembly RPZ 3/4 009-QT 0063030 63030
Amazon.com
134
Free shipping
$399.94
Watts 3/4" 009M3 Backflow Preventer Reduced Pressure Zone Assembly RPZ 3/4 009-QT 0063030 63030
Amazon.com
134
$468.99
Zurn Wilkins 1-350XL 1" 350XL Double Check Backflow Preventer
Amazon.com
123
Free shipping
$468.99
Zurn Wilkins 1-350XL 1" 350XL Double Check Backflow Preventer
Amazon.com
123
$287.71
Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer
Amazon.com
70
Free shipping
$287.71
Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer
Amazon.com
70
$73.48
Watts LF288A 1/2" Lead-Free Brass Anti-Siphon Vacuum Breaker Backflow Preventer, Female NPT Inlet And Outlet, Silicone Disc Seat, Chrome Hood,
Amazon.com
288
Free shipping
$73.48
Watts LF288A 1/2" Lead-Free Brass Anti-Siphon Vacuum Breaker Backflow Preventer, Female NPT Inlet And Outlet, Silicone Disc Seat, Chrome Hood,
Amazon.com
288
$27.79
WHK Hose Bib Backflow Preventer Vacuum Breaker,Garden Hose Check Valve To Connect 3/4 Inch Outdoor Faucet Spigot,Sprinkler,RV,Anti-Siphon,6 Packs
Amazon.com
65
$27.79
WHK Hose Bib Backflow Preventer Vacuum Breaker,Garden Hose Check Valve To Connect 3/4 Inch Outdoor Faucet Spigot,Sprinkler,RV,Anti-Siphon,6 Packs
Amazon.com
65
$31.94
$46.99
Woodford 50HFBR Backflow Preventer Brass
Amazon.com
3
32% off
$31.94
$46.99
Woodford 50HFBR Backflow Preventer Brass
Amazon.com
3
$129.86
Febco 765 Series 3/4" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoff, NPT Connections, Freeze Sensor With Sentryplus Alert
Amazon.com
1
Free shipping
$129.86
Febco 765 Series 3/4" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoff, NPT Connections, Freeze Sensor With Sentryplus Alert
Amazon.com
1
$729.21
Watts Reduced Pressure Zone Backflow Preventer: 009, With Strainer, Bronze, 3/4 in Pipe Size, NPT Model: 009M2QTS-3/4"
Grainger
$729.21
Watts Reduced Pressure Zone Backflow Preventer: 009, With Strainer, Bronze, 3/4 in Pipe Size, NPT Model: 009M2QTS-3/4"
Grainger
$347.41
Apollo Reduced Pressure Zone Backflow Preventer, Lead Free Bronze, Apollo 4ALF-200 Series, FNPT Connection 4ALF203A2F
Amazon.com
1
Free shipping
$347.41
Apollo Reduced Pressure Zone Backflow Preventer, Lead Free Bronze, Apollo 4ALF-200 Series, FNPT Connection 4ALF203A2F
Amazon.com
1
$34.96
3 Inch Pvc Backwater Valve,Sewer Check Back Flow Preventer Drain Backflow Preventer Valve,Prevent Sewage And Rainwater From Flowing Backflow
Amazon.com
42
$34.96
3 Inch Pvc Backwater Valve,Sewer Check Back Flow Preventer Drain Backflow Preventer Valve,Prevent Sewage And Rainwater From Flowing Backflow
Amazon.com
42
$133.77
Febco 765 Series 1" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoff, NPT Connections, Freeze Sensor With Sentryplus Alert
Amazon.com
5
Free shipping
$133.77
Febco 765 Series 1" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoff, NPT Connections, Freeze Sensor With Sentryplus Alert
Amazon.com
5
$277.18
Zurn Wilkins 1-350 1" 350 Double Check Backflow Preventer
Amazon.com
53
Free shipping
$277.18
Zurn Wilkins 1-350 1" 350 Double Check Backflow Preventer
Amazon.com
53
$1,644.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375XL, Std Configuration, Glass-Filled Nylon, FNPT Model: 112-375XL
Grainger
$1,644.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375XL, Std Configuration, Glass-Filled Nylon, FNPT Model: 112-375XL
Grainger
$94.68
$150.57
Watts 9D Series 3/4" Brass Dual Check Valve Backflow Preventer, Union Female NPT Inlet X Female NPT Outlet, Intermediate Atmospheric Vent, Compact
Amazon.com
102
Free shipping
37% off
$94.68
$150.57
Watts 9D Series 3/4" Brass Dual Check Valve Backflow Preventer, Union Female NPT Inlet X Female NPT Outlet, Intermediate Atmospheric Vent, Compact
Amazon.com
102
$1,608.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375XLB, Std Configuration, Bronze, FNPT Model: 112-375XLB
Grainger
$1,608.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375XLB, Std Configuration, Bronze, FNPT Model: 112-375XLB
Grainger
$15.99
HLZC Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap For Pipes Tubes In Toilet Bathroom Kitchen (Blue-10)
Amazon.com
655
$15.99
HLZC Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap For Pipes Tubes In Toilet Bathroom Kitchen (Blue-10)
Amazon.com
655
$1,071.53
Watts Reduced Pressure Zone Backflow Preventer: LF009, With Strainer, Bronze, 1 in Pipe Size, FNPT Model: 1 LF009M2-QT-S
Grainger
$1,071.53
Watts Reduced Pressure Zone Backflow Preventer: LF009, With Strainer, Bronze, 1 in Pipe Size, FNPT Model: 1 LF009M2-QT-S
Grainger
$887.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375XLB, Std Configuration, Bronze, FNPT Model: 34-375XLB
Grainger
$887.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375XLB, Std Configuration, Bronze, FNPT Model: 34-375XLB
Grainger
$2,107.99
Wilkins Reduced Pressure Zone Backflow Preventer: 975XL2, Std Configuration, Bronze, 2 in Pipe Size Model: 2-975XL2
Grainger
$2,107.99
Wilkins Reduced Pressure Zone Backflow Preventer: 975XL2, Std Configuration, Bronze, 2 in Pipe Size Model: 2-975XL2
Grainger
$23.99
5 Pack SUNROAD Lead-Free Brass 3/4" Inch MHT Hose Bibb Connector Backflow Preventer Vacuum Breaker,Check Valve For Garden Spigot RV Hose Connection,
Amazon.com
38
$23.99
5 Pack SUNROAD Lead-Free Brass 3/4" Inch MHT Hose Bibb Connector Backflow Preventer Vacuum Breaker,Check Valve For Garden Spigot RV Hose Connection,
Amazon.com
38
$1,828.29
Watts Backflow Preventer: LF009, Std Configuration, Bronze, 1 1/4 in Pipe Size, FNPT, 33°F - 180°F Model: 1 1/4 LF009M2-QT
Grainger
1
$1,828.29
Watts Backflow Preventer: LF009, Std Configuration, Bronze, 1 1/4 in Pipe Size, FNPT, 33°F - 180°F Model: 1 1/4 LF009M2-QT
Grainger
1
$784.64
Wilkins Reduced Pressure Zone Backflow Preventer: 375XLB, Std Configuration, Bronze, FNPT Model: 12-375XLB
Grainger
$784.64
Wilkins Reduced Pressure Zone Backflow Preventer: 375XLB, Std Configuration, Bronze, FNPT Model: 12-375XLB
Grainger
$2,555.75
Watts Reduced Pressure Zone Backflow Preventer Model: 1 LF909-QT-FS
Grainger
$2,555.75
Watts Reduced Pressure Zone Backflow Preventer Model: 1 LF909-QT-FS
Grainger
$543.49
Wilkins Backflow Preventer: 350XL, 3/4 in Pipe Size, FNPT X FNPT, 11 in Overall Lg, Bronze, 350 Model: 34-350XLFT
Grainger
$543.49
Wilkins Backflow Preventer: 350XL, 3/4 in Pipe Size, FNPT X FNPT, 11 in Overall Lg, Bronze, 350 Model: 34-350XLFT
Grainger
$928.92
Watts Reduced Pressure Zone Backflow Preventer: 009, With Strainer, Bronze, 1 in Pipe Size, NPT Model: 009-M1-QTS
Grainger
$928.92
Watts Reduced Pressure Zone Backflow Preventer: 009, With Strainer, Bronze, 1 in Pipe Size, NPT Model: 009-M1-QTS
Grainger
$1,941.08
Watts Backflow Preventer: 009, Std Configuration, Bronze, 1 1/4 in Pipe Size, FNPT, 33°F - 180°F Model: 1 1/4 009M2-QT
Grainger
$1,941.08
Watts Backflow Preventer: 009, Std Configuration, Bronze, 1 1/4 in Pipe Size, FNPT, 33°F - 180°F Model: 1 1/4 009M2-QT
Grainger
$71.50
$130.00
T&S B-0970-FE Atmospheric Back Flow Preventer
WebstaurantStore
1
45% off
$71.50
$130.00
T&S B-0970-FE Atmospheric Back Flow Preventer
WebstaurantStore
1
$6,401.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375A, Std Configuration, Ductile Iron, Flange Model: 4-375A
Grainger
$6,401.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375A, Std Configuration, Ductile Iron, Flange Model: 4-375A
Grainger
$179.95
1 in. Bronze Pressure Vacuum Breaker Backflow Preventer With Quarter Turn Shutoff And Tee Handles, Freeze Sensor
Home Depot
73
Free shipping
$179.95
1 in. Bronze Pressure Vacuum Breaker Backflow Preventer With Quarter Turn Shutoff And Tee Handles, Freeze Sensor
Home Depot
73
$315.99
ALLPOINTS Back-Flow Preventer, 561131
Zoro.com
$315.99
ALLPOINTS Back-Flow Preventer, 561131
Zoro.com
$850.00
Watts 909-Qt Back Flow Preventer 1-1/4" 909Qtm1
eBay
Free shipping
$850.00
Watts 909-Qt Back Flow Preventer 1-1/4" 909Qtm1
eBay
Free shipping
How to Install a Backflow Preventer | DoItYourself.com
How to Install a Backflow Preventer | DoItYourself.com
Jan 26, 2010
doityourself.com
765 - FEBCO
765 - FEBCO
Mar 4, 2019
watts.com
3000SS - Ames Fire & Waterworks
3000SS - Ames Fire & Waterworks
Jan 1, 2009
watts.com
909 Large - Watts
909 Large - Watts
Mar 7, 2020
watts.com
Backflow
1:56
Backflow
76.1K viewsJan 13, 2012
YouTubeCharleston Water System
How Does a Backflow Preventer Work?
How Does a Backflow Preventer Work?
Jan 21, 2022
qrfs.com
Backflow Tester Certification
3:31
Backflow Tester Certification
13.9K viewsMay 31, 2016
YouTubeContractorsPrepTV
2:25
Backflow Preventers Demonstration
2.6K viewsJun 1, 2017
YouTubeCity of Corpus Christi
5:39
RPZ - How it works
101.4K viewsFeb 6, 2019
YouTubeJimmy Backflow
2:43
Plumbing Backflow Preventers
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YouTubeVector Solutions Industrial
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Backflow Prevention
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YouTubeAmericanWaterWorks
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Hose Bib Backflow Preventer
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YouTubeAmerican Irrigator
3:28
Reduced Pressure Zone Valve
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YouTubeAmerican Water College
13:59
HOW DOES A BACKFLOW PREVENTER WORK?
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YouTubeLunker Fishing
5:45
EXCERPT - Field Testing Backflow Preventers, Instructional Video
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YouTubeUSC Foundation for Cross-Connection Control …
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How Blood Flows Through the Heart
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YouTubeInteractive Biology
3:15
Testing a Backflow Prevention Device - RPZ
68.8K viewsSep 7, 2011
YouTubeJimmy Backflow
7:43
Pressure Vacuum Breaker - How it Works
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YouTubeJimmy Backflow
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Mainline Backflow Valve installation, Part 1
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YouTubeThe Lo-fi Mofo
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YouTubeFlood Ready
6:43
757 & 757DCDA 212'' 6'' Backflow Preventer Repair | Watts Repairs
10.6K viewsSep 30, 2019
YouTubeWatts Water
3:57
Animation: A.R.I. Backflow Preventer in operation
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YouTubeAquestia - A.R.I., Dorot, OCV
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YouTubeSafe-T-Cover
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YouTubeFM
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How to winterize your irrigation system in Houston, Texas
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YouTubeSave Water Texas Coalition
8:52
Boom brakes and preventers test
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YouTubeYachting World
2:45
What Happens When an RPZ Backflow Preventer Fails?
28.8K viewsSep 4, 2014
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4:40
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7.3K viewsNov 8, 2018
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Shop Backflow Preventers Explained

Sponsored
About our ads
$612.65
Zurn Wilkins 1-375XL 1" 375XL Reduced Pressure Principle Backflow Preventer
Amazon.com
47
Free shipping
$612.65
Zurn Wilkins 1-375XL 1" 375XL Reduced Pressure Principle Backflow Preventer
Amazon.com
47
$504.56
$534.26
Zurn Wilkins 34-975XL 3/4" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
379
Free shipping
$504.56
$534.26
Zurn Wilkins 34-975XL 3/4" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
379
$592.45
Febco 825Y Series 1" Bronze Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Shutoff, NPT End Connections, Y Pattern, Flood Sensor With
Amazon.com
1
Free shipping
$592.45
Febco 825Y Series 1" Bronze Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Shutoff, NPT End Connections, Y Pattern, Flood Sensor With
Amazon.com
1
$566.55
Zurn Wilkins 1-375 1" 375 Reduced Pressure Principle Backflow Preventer
Amazon.com
108
Free shipping
$566.55
Zurn Wilkins 1-375 1" 375 Reduced Pressure Principle Backflow Preventer
Amazon.com
108
$665.92
Zurn Wilkins 1-975XL 1" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
379
Free shipping
$665.92
Zurn Wilkins 1-975XL 1" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
379
$399.94
Watts 3/4" 009M3 Backflow Preventer Reduced Pressure Zone Assembly RPZ 3/4 009-QT 0063030 63030
Amazon.com
134
Free shipping
$399.94
Watts 3/4" 009M3 Backflow Preventer Reduced Pressure Zone Assembly RPZ 3/4 009-QT 0063030 63030
Amazon.com
134
$468.99
Zurn Wilkins 1-350XL 1" 350XL Double Check Backflow Preventer
Amazon.com
123
Free shipping
$468.99
Zurn Wilkins 1-350XL 1" 350XL Double Check Backflow Preventer
Amazon.com
123
$287.71
Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer
Amazon.com
70
Free shipping
$287.71
Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer
Amazon.com
70
$73.48
Watts LF288A 1/2" Lead-Free Brass Anti-Siphon Vacuum Breaker Backflow Preventer, Female NPT Inlet And Outlet, Silicone Disc Seat, Chrome Hood,
Amazon.com
288
Free shipping
$73.48
Watts LF288A 1/2" Lead-Free Brass Anti-Siphon Vacuum Breaker Backflow Preventer, Female NPT Inlet And Outlet, Silicone Disc Seat, Chrome Hood,
Amazon.com
288
$27.79
WHK Hose Bib Backflow Preventer Vacuum Breaker,Garden Hose Check Valve To Connect 3/4 Inch Outdoor Faucet Spigot,Sprinkler,RV,Anti-Siphon,6 Packs
Amazon.com
65
$27.79
WHK Hose Bib Backflow Preventer Vacuum Breaker,Garden Hose Check Valve To Connect 3/4 Inch Outdoor Faucet Spigot,Sprinkler,RV,Anti-Siphon,6 Packs
Amazon.com
65
$31.94
$46.99
Woodford 50HFBR Backflow Preventer Brass
Amazon.com
3
32% off
$31.94
$46.99
Woodford 50HFBR Backflow Preventer Brass
Amazon.com
3
$129.86
Febco 765 Series 3/4" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoff, NPT Connections, Freeze Sensor With Sentryplus Alert
Amazon.com
1
Free shipping
$129.86
Febco 765 Series 3/4" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoff, NPT Connections, Freeze Sensor With Sentryplus Alert
Amazon.com
1
$729.21
Watts Reduced Pressure Zone Backflow Preventer: 009, With Strainer, Bronze, 3/4 in Pipe Size, NPT Model: 009M2QTS-3/4"
Grainger
$729.21
Watts Reduced Pressure Zone Backflow Preventer: 009, With Strainer, Bronze, 3/4 in Pipe Size, NPT Model: 009M2QTS-3/4"
Grainger
$347.41
Apollo Reduced Pressure Zone Backflow Preventer, Lead Free Bronze, Apollo 4ALF-200 Series, FNPT Connection 4ALF203A2F
Amazon.com
1
Free shipping
$347.41
Apollo Reduced Pressure Zone Backflow Preventer, Lead Free Bronze, Apollo 4ALF-200 Series, FNPT Connection 4ALF203A2F
Amazon.com
1
$34.96
3 Inch Pvc Backwater Valve,Sewer Check Back Flow Preventer Drain Backflow Preventer Valve,Prevent Sewage And Rainwater From Flowing Backflow
Amazon.com
42
$34.96
3 Inch Pvc Backwater Valve,Sewer Check Back Flow Preventer Drain Backflow Preventer Valve,Prevent Sewage And Rainwater From Flowing Backflow
Amazon.com
42
$133.77
Febco 765 Series 1" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoff, NPT Connections, Freeze Sensor With Sentryplus Alert
Amazon.com
5
Free shipping
$133.77
Febco 765 Series 1" Bronze Pressure Vacuum Breaker Backflow Preventer, Quarter Turn Shutoff, NPT Connections, Freeze Sensor With Sentryplus Alert
Amazon.com
5
$277.18
Zurn Wilkins 1-350 1" 350 Double Check Backflow Preventer
Amazon.com
53
Free shipping
$277.18
Zurn Wilkins 1-350 1" 350 Double Check Backflow Preventer
Amazon.com
53
$1,644.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375XL, Std Configuration, Glass-Filled Nylon, FNPT Model: 112-375XL
Grainger
$1,644.99
Wilkins Reduced Pressure Zone Backflow Preventer: 375XL, Std Configuration, Glass-Filled Nylon, FNPT Model: 112-375XL
Grainger