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Backflow Valve(524)
Uses item details. Price when purchased online
RV Camper 1/2 Inch Thread Plastic Check Valve Backflow Preventer Black PN 94211 $11.34 Was $12.60

Sponsored
Now$1134
current price Now $11.34, Was $12.60$12.60
RV Camper 1/2 Inch Thread Plastic Check Valve Backflow Preventer Black PN 94211
VEVOR Anti-Siphon Frost-Proof Sillcock, 12" Freeze Proof Outdoor Faucet Bib with Backflow Preventer, 1/2" Push-to-Fit Connector X 3/4" Hose Bibb, No Lead Frost-free Spigot for PEX Copper CPVC Pipes $31.90

Sponsored
$3190
current price $31.90VEVOR Anti-Siphon Frost-Proof Sillcock, 12" Freeze Proof Outdoor Faucet Bib with Backflow Preventer, 1/2" Push-to-Fit Connector X 3/4" Hose Bibb, No Lead Frost-free Spigot for PEX Copper CPVC Pipes
33.7 out of 5 Stars. 3 reviews
Merrill mfg BVBADNL75 Brass Vacuum Breaker Valve, 3/4 inch, Backflow Preventor for Drain Pipes $16.96

Sponsored
$1696
current price $16.96Merrill mfg BVBADNL75 Brass Vacuum Breaker Valve, 3/4 inch, Backflow Preventor for Drain Pipes
54.8 out of 5 Stars. 5 reviews
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Merrill Mfg CVNL100 No Lead Brass Check Valve for Well, 1", 700 Series $20.00

Sponsored
$2000
current price $20.00Merrill Mfg CVNL100 No Lead Brass Check Valve for Well, 1", 700 Series
114.9 out of 5 Stars. 11 reviews
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Mueller/B & K 108-904RP Backflow Preventer-Vacuum Breaker From $10.74
From$1074
Mueller/B & K 108-904RP Backflow Preventer-Vacuum Breaker
214.4 out of 5 Stars. 21 reviews
Merrill mfg BVBADNL75 Brass Vacuum Breaker Valve, 3/4 inch, Backflow Preventor for Drain Pipes $16.96

$1696
current price $16.96Merrill mfg BVBADNL75 Brass Vacuum Breaker Valve, 3/4 inch, Backflow Preventor for Drain Pipes
54.8 out of 5 Stars. 5 reviews
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Midline Valve Inline Spring Loaded Check Valve, Backflow Prevention, Lead-Free, 3/4 in. FIP Connections, Cast Brass From $11.59

4 options
Available in additional 4 optionsFrom$1159
Midline Valve Inline Spring Loaded Check Valve, Backflow Prevention, Lead-Free, 3/4 in. FIP Connections, Cast Brass
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Clearance Tahtuvzn Home Decor Drains Backflow Preventer Shower Floor One Way Valves Sewer Core for Water Drainage, Gifts Family Was $5.99
Tahtuvzn Home Decor Drains Backflow Preventer Shower Floor One Way Valves Sewer Core for Water Drainage, Gifts Family
Toyvian Zinc Alloy Non-Return Valve HPB59-1 for Air , Backflow Prevention, Golden Finish, 1 Piece $7.86

$786
current price $7.86Toyvian Zinc Alloy Non-Return Valve HPB59-1 for Air , Backflow Prevention, Golden Finish, 1 Piece
Bucket anti-backflow check valve one-way valve water pipe check valve copper

Bucket anti-backflow check valve one-way valve water pipe check valve copper
Best seller KFFKFF 12" Frost-Proof Outdoor Faucet with Anti-Siphon and Backflow Prevention, 1/2" Push-to-Fit Connector x 3/4" Hose Bibb, Lead-Free Spigot for PEX, Copper, and CPVC Pipes $24.99

Sponsored
$2499
current price $24.99KFFKFF 12" Frost-Proof Outdoor Faucet with Anti-Siphon and Backflow Prevention, 1/2" Push-to-Fit Connector x 3/4" Hose Bibb, Lead-Free Spigot for PEX, Copper, and CPVC Pipes
104.3 out of 5 Stars. 10 reviews
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DANSPEED 1/2" Stainless Steel Vertical Check Valve NPT Spring Loaded In-line From $12.49

Sponsored
From$1249
DANSPEED 1/2" Stainless Steel Vertical Check Valve NPT Spring Loaded In-line
25 out of 5 Stars. 2 reviews
Midline Valve Inline Spring Loaded Check Valve, Backflow Prevention, Led-Free, 3/4 in. Sweat Connections, Cast Brass From $31.82

4 options
Available in additional 4 optionsFrom$3182
Midline Valve Inline Spring Loaded Check Valve, Backflow Prevention, Led-Free, 3/4 in. Sweat Connections, Cast Brass
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Legend Valve T-459 3/4" Backflow Preventer / Atmospheric Vent, #115-114 $74.47

$7447
current price $74.47Legend Valve T-459 3/4" Backflow Preventer / Atmospheric Vent, #115-114
PVC Inline Check Valve for Backflow Prevention 1-1/4'' Solvent Connections White Plastic $14.99

$1499
current price $14.99PVC Inline Check Valve for Backflow Prevention 1-1/4'' Solvent Connections White Plastic
15 out of 5 Stars. 1 reviews
AHGQT Quiet Sump Pump Check Valve, 2 Inch PVC Silent Backflow Valve With Spring Loaded Flapper for Backflow Prevention, Reduces Water Hammer Noise, Sump Pump Life Expectancy Increase From $26.99
From$2699
AHGQT Quiet Sump Pump Check Valve, 2 Inch PVC Silent Backflow Valve With Spring Loaded Flapper for Backflow Prevention, Reduces Water Hammer Noise, Sump Pump Life Expectancy Increase
YAHHU JC80 Cast Iron One-Way Check Valve 3/4 in / 1.9 cm for Air Compressors, Heavy Duty Return Valve for Liquid Backflow Prevention $22.75

$2275
current price $22.75YAHHU JC80 Cast Iron One-Way Check Valve 3/4 in / 1.9 cm for Air Compressors, Heavy Duty Return Valve for Liquid Backflow Prevention
Riousery Quiet Sump Pump Check Valve Clear Silent 2-Inch (5.08 cm) PVC Pipe Backflow Preventer with Spring Loaded Flapper $32.28

$3228
current price $32.28Riousery Quiet Sump Pump Check Valve Clear Silent 2-Inch (5.08 cm) PVC Pipe Backflow Preventer with Spring Loaded Flapper
Backflow Preventer Valves for Shower & Floor Drains | One-Way Sewer Check Valves | Metal+PC Construction | Prevents Odors & Backflow

Backflow Preventer Valves for Shower & Floor Drains | One-Way Sewer Check Valves | Metal+PC Construction | Prevents Odors & Backflow
3/4 in. Bronze Double Check Valve Backflow Preventer Assembly Quarter Turn Shutoff with Freeze Sensor $249.99

$24999
current price $249.993/4 in. Bronze Double Check Valve Backflow Preventer Assembly Quarter Turn Shutoff with Freeze Sensor
Reduced price Bonnet Poppet Repair kit fit for FEBCO 765-1 Replacement Part# 905-212 1" & 1-1/4" Backflow Preventer and Vacuum Breaker Part 905212 for FEBCO 765 1" & 1 1/4" Vacuum Valve $13.59 Was $19.99

Sponsored
Now$1359
current price Now $13.59, Was $19.99$19.99
Bonnet Poppet Repair kit fit for FEBCO 765-1 Replacement Part# 905-212 1" & 1-1/4" Backflow Preventer and Vacuum Breaker Part 905212 for FEBCO 765 1" & 1 1/4" Vacuum Valve
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Inline Check Valve w/ 1/4" Quick Connect Push Connect Fittings for Reverse Osmosis Systems $16.99

Sponsored
$1699
current price $16.99Inline Check Valve w/ 1/4" Quick Connect Push Connect Fittings for Reverse Osmosis Systems
RV Camper 1/2 Inch Thread Plastic Check Valve Backflow Preventer Black PN 94211 $11.34 Was $12.60

Now$1134
current price Now $11.34, Was $12.60$12.60
RV Camper 1/2 Inch Thread Plastic Check Valve Backflow Preventer Black PN 94211
YAHHU 2 Inch DN50 Brass Swing Check Valve, Female Thread Non-Return Water Valve 232PSI Prevent Backflow $32.09

$3209
current price $32.09YAHHU 2 Inch DN50 Brass Swing Check Valve, Female Thread Non-Return Water Valve 232PSI Prevent Backflow
Watts 1 in. D X 1 in. D FNPT x FNPT Brass Backflow Preventer Double Check Valve $299.95

$29995
current price $299.95Watts 1 in. D X 1 in. D FNPT x FNPT Brass Backflow Preventer Double Check Valve
Uxcell 2-Pack Brass Check Valve, 1/2" Male to 1/2" Male Thread One Way Non-Return Backflow Preventer Valve [Gold] $11.49
![Uxcell 2-Pack Brass Check Valve, 1/2" Male to 1/2" Male Thread One Way Non-Return Backflow Preventer Valve [Gold]](https://i5.walmartimages.com/seo/Uxcell-2-Pack-Brass-Check-Valve-1-2-Male-to-1-2-Male-Thread-One-Way-Non-Return-Backflow-Preventer-Valve-Gold_60d7ab8f-3159-4d4a-8bd8-41d5be9eea48.a94d3839d5509db131db6f1b8480a2e8.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$1149
current price $11.49Uxcell 2-Pack Brass Check Valve, 1/2" Male to 1/2" Male Thread One Way Non-Return Backflow Preventer Valve [Gold]
Uxcell G3/4 Male Female Thread 30x33mm Non-Return Backflow Prevent Brass Check Valve From $12.99

2 options
Available in additional 2 optionsFrom$1299
Uxcell G3/4 Male Female Thread 30x33mm Non-Return Backflow Prevent Brass Check Valve
Anti Backflow Valves Heavy Duty Construction Threaded Ends Fit for Pipe Systems From $8.89

3 options
Available in additional 3 optionsFrom$889
Anti Backflow Valves Heavy Duty Construction Threaded Ends Fit for Pipe Systems
Clearance WINDLAND Silents Check Valves with Clamps Sump Pump Check Valves for Backflow Prevention Was $27.13

WINDLAND Silents Check Valves with Clamps Sump Pump Check Valves for Backflow Prevention
yaaqii PVC Check Valve Backflow Prevention Valve Backflow Water Valve Prevent Backflow From $16.75

2 options
Available in additional 2 optionsFrom$1675
yaaqii PVC Check Valve Backflow Prevention Valve Backflow Water Valve Prevent Backflow
The Bosworth Co., Foot/Check Valve for Guzzler 400, 1-1/8", MPN 74-9 $23.20

Sponsored
$2320
current price $23.20The Bosworth Co., Foot/Check Valve for Guzzler 400, 1-1/8", MPN 74-9
The Bosworth Co., Foot/Check Valve for Guzzler 400, Barbed, 3/4" $27.40

Sponsored
$2740
current price $27.40The Bosworth Co., Foot/Check Valve for Guzzler 400, Barbed, 3/4"
Midline Valve Swing Check Valve, Backflow Prevention, Lead-Free, 1/2 in. Sweat Connections, Cast Brass From $11.42

9 options
Available in additional 9 optionsFrom$1142
Midline Valve Swing Check Valve, Backflow Prevention, Lead-Free, 1/2 in. Sweat Connections, Cast Brass
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TOP-MAX 3/4" (20mm)-G1/2" Female Or Male Thread Backflow Prevention Valve One-Way Backflow Prevention Hose Valve From $7.13

5 options
Available in additional 5 optionsFrom$713
TOP-MAX 3/4" (20mm)-G1/2" Female Or Male Thread Backflow Prevention Valve One-Way Backflow Prevention Hose Valve
Inline Check Valve, Solvent Connections Stainless Steel Spring Loaded Backflow Preventer, Quick Assembly Without Disassembling Clamp (40mm) $21.99

$2199
current price $21.99Inline Check Valve, Solvent Connections Stainless Steel Spring Loaded Backflow Preventer, Quick Assembly Without Disassembling Clamp (40mm)
YAHHU 2PCS 10mm / 0.4 inches Plastic Check Valve Non Return One Way Valve for Gas Liquid Fluid System Parts Backflow Preventer Inline Replacement[cite: 1] $7.93
![YAHHU 2PCS 10mm / 0.4 inches Plastic Check Valve Non Return One Way Valve for Gas Liquid Fluid System Parts Backflow Preventer Inline Replacement[cite: 1]](https://i5.walmartimages.com/seo/YAHHU-2PCS-10mm-0-4-inches-Plastic-Check-Valve-Non-Return-One-Way-Valve-Gas-Liquid-Fluid-System-Parts-Backflow-Preventer-Inline-Replacement-cite-1_2a2e3b5f-01c4-4971-8130-24ea92e4a856.5326dceb34df08fc91b463b3e4429bbb.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$793
current price $7.93YAHHU 2PCS 10mm / 0.4 inches Plastic Check Valve Non Return One Way Valve for Gas Liquid Fluid System Parts Backflow Preventer Inline Replacement[cite: 1]
IPW Industries Inc. | SMC 6850090 Inline Poppet Backflow Preventer Check Valve for Home Improvement, Water Pump System, Kitchen Plumbing & Irrigation $22.00

$2200
current price $22.00IPW Industries Inc. | SMC 6850090 Inline Poppet Backflow Preventer Check Valve for Home Improvement, Water Pump System, Kitchen Plumbing & Irrigation
Legend Valve 115-104NL Dual Check Backflow Preventer Valve 3/4 in FNPT $68.18

$6818
current price $68.18Legend Valve 115-104NL Dual Check Backflow Preventer Valve 3/4 in FNPT
High Efficiency Air Conditioning Drain Valves Leakproof Design Easy Installation Backflow Prevention Valves for Repair

High Efficiency Air Conditioning Drain Valves Leakproof Design Easy Installation Backflow Prevention Valves for Repair
Apollo Valves Backflow Valve,Forged Brass,1/2" Size 4ALF4A33AM $94.32

$9432
current price $94.32Apollo Valves Backflow Valve,Forged Brass,1/2" Size 4ALF4A33AM
YAHHU Golden Brass One Way Female Thread Swing Check Valve DN15 Heavy Duty Water Backflow Preventer Pipe Fitting, 1.97 inches / 5 cm Length, Corrosion Resistant Check Valve Parts for Plumbing $9.69

$969
current price $9.69YAHHU Golden Brass One Way Female Thread Swing Check Valve DN15 Heavy Duty Water Backflow Preventer Pipe Fitting, 1.97 inches / 5 cm Length, Corrosion Resistant Check Valve Parts for Plumbing
PVC Ventilation Backflow Preventer Valves Ventilation Pipe Round Check Valves Plastic Inline Backdrafts Damper Enduring From $8.92
From$892
PVC Ventilation Backflow Preventer Valves Ventilation Pipe Round Check Valves Plastic Inline Backdrafts Damper Enduring
Dreamhall Pvc Check Valve Backflow Prevention Valve Backflow Water Valve Prevent Backflow,A From $22.55

2 options
Available in additional 2 optionsFrom$2255
Dreamhall Pvc Check Valve Backflow Prevention Valve Backflow Water Valve Prevent Backflow,A
MOMOJIA Professional Thickened Brass Anti Backflow Valves 1 Inch NPT Threaded Design Leakproof Solution For Water Gas Systems

MOMOJIA Professional Thickened Brass Anti Backflow Valves 1 Inch NPT Threaded Design Leakproof Solution For Water Gas Systems
Osdhezcn Sturdy Air Conditioning Drainage Valves Backflow Prevention PVC Stainless Steel Texture Suitable for Cooling Systems

Osdhezcn Sturdy Air Conditioning Drainage Valves Backflow Prevention PVC Stainless Steel Texture Suitable for Cooling Systems
Oatey 4 in. PVC DWV Backwater Valve Residential Use, Standard Application $42.18

$4218
current price $42.18Oatey 4 in. PVC DWV Backwater Valve Residential Use, Standard Application
25 out of 5 Stars. 2 reviews
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Lypsnake Quiet Sump Pump Check Valve, 1.5"Transparent Silent Check Valve with Couplings, Spring-Loaded Backflow Preventer with Stainless Steel Clamps for Sump Pump Drainage Systems From $14.97
From$1497
Lypsnake Quiet Sump Pump Check Valve, 1.5"Transparent Silent Check Valve with Couplings, Spring-Loaded Backflow Preventer with Stainless Steel Clamps for Sump Pump Drainage Systems
WEAVILUX Stainless Steel Check Valve Backflow Preventer for Home Exhaust Systems, and Easy to Install $14.48
$1448
current price $14.48WEAVILUX Stainless Steel Check Valve Backflow Preventer for Home Exhaust Systems, and Easy to Install
YSNOOWE Anti Backflow Check Valve Non Return Valves Brass for Industrial Applications 1Pack $12.03

$1203
current price $12.03YSNOOWE Anti Backflow Check Valve Non Return Valves Brass for Industrial Applications 1Pack
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