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Backflow Valve(539)
Uses item details. Price when purchased online
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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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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RV Camper 1/2 Inch Thread Plastic Check Valve Backflow Preventer Black PN 94211 $12.60

Sponsored
$1260
current price $12.60RV Camper 1/2 Inch Thread Plastic Check Valve Backflow Preventer Black PN 94211
DANSPEED 2" inch Stainless Steel Vertical Check Valve NPT Spring Loaded In-line From $12.49

Sponsored
From$1249
DANSPEED 2" inch Stainless Steel Vertical Check Valve NPT Spring Loaded In-line
25 out of 5 Stars. 2 reviews
Mueller/B & K 108-904RP Backflow Preventer-Vacuum Breaker From $10.74
From$1074
Mueller/B & K 108-904RP Backflow Preventer-Vacuum Breaker
224.4 out of 5 Stars. 22 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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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 $21.55 Was $24.53

Now$2155
current price Now $21.55, Was $24.53$24.53
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
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
RV Camper 1/2 Inch Thread Plastic Check Valve Backflow Preventer Black PN 94211 $12.60

$1260
current price $12.60RV Camper 1/2 Inch Thread Plastic Check Valve Backflow Preventer Black PN 94211
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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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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1" 720A 1-720A Pressure Vacuum Breaker Assembly,Brass Irrigation Backflow Preventer Valve for Lawn Irrigation System, Garden Sprinkler, Outdoor Water Line, Anti-Siphon Protection MAX 400PSI

2 options
Available in additional 2 options1" 720A 1-720A Pressure Vacuum Breaker Assembly,Brass Irrigation Backflow Preventer Valve for Lawn Irrigation System, Garden Sprinkler, Outdoor Water Line, Anti-Siphon Protection MAX 400PSI
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
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 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 $10.89

$1089
current price $10.89YAHHU 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
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
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] $7.96
![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)
$796
current price $7.96YAHHU 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]
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
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
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
Groco CV Bronze In-Line Check Valve $30.70

Sponsored
$3070
current price $30.70Groco CV Bronze In-Line Check Valve
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
FRKSMD-2-Pack 3/4 Inch GHT Backflow Preventer for Garden Hose, Brass Vacuum Breaker Outside Faucet, Anti-Siphon Valve Hose Bib, Garden Hose Check Valve, RV Vacuum Breaker Valve with Tape $16.70 Was $26.98

Now$1670
current price Now $16.70, Was $26.98$26.98
FRKSMD-2-Pack 3/4 Inch GHT Backflow Preventer for Garden Hose, Brass Vacuum Breaker Outside Faucet, Anti-Siphon Valve Hose Bib, Garden Hose Check Valve, RV Vacuum Breaker Valve with Tape
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
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
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
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
Midline Valve PVC Inline Check Valve for Backflow Prevention; 1'' Solvent Connections; White Plastic From $8.87

4 options
Available in additional 4 optionsFrom$887
Midline Valve PVC Inline Check Valve for Backflow Prevention; 1'' Solvent Connections; White Plastic
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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
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"
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
1Pcs Brass Check Valve 1 Inch, Backflow Preventer,1” IG TO AG Return Valve, Rustproof and Watertight,For Water Pipes,Pumps,Gardens,Barrels,Washing Machines

2 options
Available in additional 2 options1Pcs Brass Check Valve 1 Inch, Backflow Preventer,1” IG TO AG Return Valve, Rustproof and Watertight,For Water Pipes,Pumps,Gardens,Barrels,Washing Machines
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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Quiet Sump Pump Check Valve, 2" Pvc Check Valve,Silent Backflow Valve with Spring Loaded Flapper, Reduces Water Hammer Noise

Quiet Sump Pump Check Valve, 2" Pvc Check Valve,Silent Backflow Valve with Spring Loaded Flapper, Reduces Water Hammer Noise
Oatey 4 in. PVC DWV Backwater Valve Residential Use, Standard Application $40.90

$4090
current price $40.90Oatey 4 in. PVC DWV Backwater Valve Residential Use, Standard Application
25 out of 5 Stars. 2 reviews
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
check valve,sump pump check valve,backflow preventer 1.5 inch

check valve,sump pump check valve,backflow preventer 1.5 inch
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
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
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)
2 Pack 3/4 Inch Backflow Preventer, Pressure Vacuum Breaker Assembly, Heavy Duty Brass Sprinkler Backflow Valve for Lawn Irrigation, Garden Water Line, Outdoor Anti-Siphon Protection, Max 400 PSI $251.98

$25198
current price $251.982 Pack 3/4 Inch Backflow Preventer, Pressure Vacuum Breaker Assembly, Heavy Duty Brass Sprinkler Backflow Valve for Lawn Irrigation, Garden Water Line, Outdoor Anti-Siphon Protection, Max 400 PSI
2PCS 1/2 Inch Brass Backflow Preventer Valves Strong Corrosion Resistant Pipe Fitting Easy to Use for Water Systems From $9.44

2 options
Available in additional 2 optionsFrom$944
2PCS 1/2 Inch Brass Backflow Preventer Valves Strong Corrosion Resistant Pipe Fitting Easy to Use for Water Systems
AC Drainage Valves PVC Stainless Steel Backflow Prevention, Leakproof Design for Residential/Commercial Cooling Systems From $9.16
From$916
AC Drainage Valves PVC Stainless Steel Backflow Prevention, Leakproof Design for Residential/Commercial Cooling Systems
Midline Valve Inline Spring Loaded Check Valve, Backflow Prevention, Lead-Free, 1/2 in. Sweat Connections, Cast Brass From $10.09

6 options
Available in additional 6 optionsFrom$1009
Midline Valve Inline Spring Loaded Check Valve, Backflow Prevention, Lead-Free, 1/2 in. Sweat Connections, Cast Brass
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304 Stainless Steel Npt Check Valve 1/4" 3/8" 1/2" Non-Return Backflow Preventer For Industrial Plumbing Hydraulic Systems -60F To 450F Npt3/8 From $9.99

2 options
Available in additional 2 optionsFrom$999
304 Stainless Steel Npt Check Valve 1/4" 3/8" 1/2" Non-Return Backflow Preventer For Industrial Plumbing Hydraulic Systems -60F To 450F Npt3/8
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
Heavy Duty Brass Water Heater Valves Steel Backflow Preventer Pressure Reducing Device for Residential Commercial Use $8.43

$843
current price $8.43Heavy Duty Brass Water Heater Valves Steel Backflow Preventer Pressure Reducing Device for Residential Commercial Use
Apollo Valves Reduced Pressure Zone Backflow Preventer 4ALF205A2F $559.96 $559.96/1

$55996
current price $559.96$559.96/1
Apollo Valves Reduced Pressure Zone Backflow Preventer 4ALF205A2F
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