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FaucetsAir ToolsAll Tool SetsAmerican StandardBathroom Cabinets & FixturesBathroom HardwareBathroom PlumbingCaulking & SealantsDeckingDelta Home ImprovementDesigner Plumbing Fixtures & HardwareElectrical ToolsEmergency SuppliesEvaporative Coolers and PartsGarage Storage SystemsGroheGuttering & DrainageHand ToolsHVAC Ducting and VentilationInsulationKitchen Fixtures and MaterialsKitchen PlumbingMayfairMechanics ToolsMoen Home ImprovementOutdoor DrainagePaint Supplies & ToolsPipes, Fittings & AccessoriesPlumbing Tools & AccessoriesPower Tool AccessoriesPower ToolsProjectsRoofingSealants, Fillers and AdhesivesShop Plumbing BrandsShop Plumbing by FixtureStorage ContainersStorm & Flood PrepTestersToilets and BidetsUtility FixturesUtility Sinks & FaucetsValves & Valve RepairWater FiltersWater Filtration & Water SoftenersWater HeatersWater Heaters, Pumps & TanksWeatherproof CoversWelding & Cutting AccessoriesWinter Prep
Backflow Plumbing(449)
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
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
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
84.4 out of 5 Stars. 8 reviews
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
Clearance Inerposs Drains Backflow Preventer, One Way Drain Valve for Shower Floor Water Drainage, Orange (1PC) Was $4.64
Inerposs Drains Backflow Preventer, One Way Drain Valve for Shower Floor Water Drainage, Orange (1PC)
Drain Backflow Preventer 1 Pack - One Way Drain Sewer Core for Floor Drainage - Odor and Insect Stopper for Shower Kitchen Bathroom Basement Toilet Sink Drain From $5.44
From$544
Drain Backflow Preventer 1 Pack - One Way Drain Sewer Core for Floor Drainage - Odor and Insect Stopper for Shower Kitchen Bathroom Basement Toilet Sink Drain
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
Tuphregyow Floor Drain Backflow Preventer - One-Way Valves Sewer Core for Bathroom, Kitchen, and Basement Water Drainage. Black
Tuphregyow Floor Drain Backflow Preventer - One-Way Valves Sewer Core for Bathroom, Kitchen, and Basement Water Drainage. Black
ARROWHEAD BRASS & PLUMBING 58ABP Backflow Preventer, Non Anti-Siphon, 3/4 In. Hose Thread $21.46
$2146
current price $21.46ARROWHEAD BRASS & PLUMBING 58ABP Backflow Preventer, Non Anti-Siphon, 3/4 In. Hose Thread
Clearance Floor Drain Backflow Preventer Valve, Anti-Odor Plug for Shower, Kitchen, and Bathroom Drainage, Easy to Install, Universal Sewer Core Insert From $4.98
From$498
Floor Drain Backflow Preventer Valve, Anti-Odor Plug for Shower, Kitchen, and Bathroom Drainage, Easy to Install, Universal Sewer Core Insert
DANSPEED 1-1/2" 1.5 inch Stainless Steel Vertical Check Valve NPT Spring Loaded In-line From $12.49
Sponsored
From$1249
DANSPEED 1-1/2" 1.5 inch Stainless Steel Vertical Check Valve NPT Spring Loaded In-line
25 out of 5 Stars. 2 reviews
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
104.9 out of 5 Stars. 10 reviews
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
Watts Backflow System Low Pressure, 1-1/4 In. Fip, Lead Free
Watts Backflow System Low Pressure, 1-1/4 In. Fip, Lead Free
Anti-backflow Floor Drain,magnetic Levitation Smell Proof,shower Sink Check Valve,one Way Sewer Seal Plug $34.68
$3468
current price $34.68Anti-backflow Floor Drain,magnetic Levitation Smell Proof,shower Sink Check Valve,one Way Sewer Seal Plug
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
Plumbing Backwater Valve 3 Inch, PVC Backflow Preventer, Sewer Drain Check Valve, White - Leak Proof Protection for Home & Business $43.07
$4307
current price $43.07Plumbing Backwater Valve 3 Inch, PVC Backflow Preventer, Sewer Drain Check Valve, White - Leak Proof Protection for Home & Business
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
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
Road & Home 1/2 in. Backflow Preventer, Brass $6.75
$675
current price $6.75Road & Home 1/2 in. Backflow Preventer, Brass
15 out of 5 Stars. 1 reviews
Groco CV Bronze In-Line Check Valve $30.70
Sponsored
$3070
current price $30.70Groco CV Bronze In-Line Check Valve
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
Clearance Shower Floor Drain Valve One Way Backflow Preventer Anti Odor Insect Proof Sewer Core Insert Bathroom Kitchen Drain Filter Replacement Anti Smell Water Blocker Plumbing Accessory Was $8.15
Shower Floor Drain Valve One Way Backflow Preventer Anti Odor Insect Proof Sewer Core Insert Bathroom Kitchen Drain Filter Replacement Anti Smell Water Blocker Plumbing Accessory
1/2inch Brass Backflow Preventer Reinforced Design Suitable For Plumbing And Pipe Configurations From $9.98
From$998
1/2inch Brass Backflow Preventer Reinforced Design Suitable For Plumbing And Pipe Configurations
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
Clearance Drains Backflow Preventer, One Way Drain Valve, Sewer Core, Metal+PC Material, Anti-Odor Anti-Insect, Easy to Install, for Floor Water Drainage in Bathroom Kitchen Was $4.98
Drains Backflow Preventer, One Way Drain Valve, Sewer Core, Metal+PC Material, Anti-Odor Anti-Insect, Easy to Install, for Floor Water Drainage in Bathroom Kitchen
Drain Backflow Preventer for Floor Drain - One Way Valves Sewer Core - Shower Drain Check Valves for Odor and - 1 Pack Metal and PC - for Kitchen Bathroom Basement Garage Drainage From $6.06
From$606
Drain Backflow Preventer for Floor Drain - One Way Valves Sewer Core - Shower Drain Check Valves for Odor and - 1 Pack Metal and PC - for Kitchen Bathroom Basement Garage Drainage
Clearance Backflow Preventer for Shower & Floor Drains | One-Way Sewer Drain | Prevents Odors & Backflow in Bathroom, Kitchen, Basement & Garage | Metal & PC Construction From $3.44
From$344
Backflow Preventer for Shower & Floor Drains | One-Way Sewer Drain | Prevents Odors & Backflow in Bathroom, Kitchen, Basement & Garage | Metal & PC Construction
Krydros 4-Pack Brass Hose Bib Backflow Preventer, 3/4" FHT x 3/4" MHT Lead-Free Vacuum Breaker From $25.99
2 options
Available in additional 2 optionsFrom$2599
Krydros 4-Pack Brass Hose Bib Backflow Preventer, 3/4" FHT x 3/4" MHT Lead-Free Vacuum Breaker
Clearance Backflow Preventer Drain Valve, One-way Sewer Core for Shower and Floor Drainage, Odor and Insect Barrier for Bathroom Kitchen Basement Toilet, Topliu Was $5.19
Backflow Preventer Drain Valve, One-way Sewer Core for Shower and Floor Drainage, Odor and Insect Barrier for Bathroom Kitchen Basement Toilet, Topliu
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"
RRJ Backflow Preventer Valves, One Way Drain Valves Sewer Core, Shower Floor Drains Backflow Preventer, Bathroom Sink Drain Stopper, Kitchen Floor Water Drainage $3.99 Was $6.99
Now$399
current price Now $3.99, Was $6.99$6.99
RRJ Backflow Preventer Valves, One Way Drain Valves Sewer Core, Shower Floor Drains Backflow Preventer, Bathroom Sink Drain Stopper, Kitchen Floor Water Drainage
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 $26.98
$2698
current price $26.98FRKSMD-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
SEAFLO In-Line or 90 Quick Disconnect Check Valve Anti-Backflow, PA6+GF+POM Construction Non-Return Valve for Marine, RV, and Plumbing Use (Choose Size & Style) $15.99
$1599
current price $15.99SEAFLO In-Line or 90 Quick Disconnect Check Valve Anti-Backflow, PA6+GF+POM Construction Non-Return Valve for Marine, RV, and Plumbing Use (Choose Size & Style)
Drain Backflow Preventer for Shower Floor | One Way Drain Tap | Sewer Core for Floor Water Drainage | Easy Install Replacement for Kitchen Bathroom Basement Toilet | Metal and PC | 1 Pack Was $6.09
Drain Backflow Preventer for Shower Floor | One Way Drain Tap | Sewer Core for Floor Water Drainage | Easy Install Replacement for Kitchen Bathroom Basement Toilet | Metal and PC | 1 Pack
Drain Backflow Preventer for Shower Floor - One Way Drain Valves Sewer Core - Floor Drain Check Valves with Odor Trap for Kitchen, Bathroom, Garage, Basement - Easy Install Metal and PC - 1 Pack From $5.44
From$544
Drain Backflow Preventer for Shower Floor - One Way Drain Valves Sewer Core - Floor Drain Check Valves with Odor Trap for Kitchen, Bathroom, Garage, Basement - Easy Install Metal and PC - 1 Pack
Floor Drain Backflow Preventer Valve | One Way Sewer Core for Shower, Kitchen, Bathroom | Metal+PC Construction | Black Gold Silver | 7.2x4.9x3cm Odor Insect Protection From $4.49
From$449
Floor Drain Backflow Preventer Valve | One Way Sewer Core for Shower, Kitchen, Bathroom | Metal+PC Construction | Black Gold Silver | 7.2x4.9x3cm Odor Insect Protection
Strong ABS Check Valves Leak Proof Vacuum Backflow Preventer with PTFE Tape for Secure Plumbing & Backflow Defense $17.60
$1760
current price $17.60Strong ABS Check Valves Leak Proof Vacuum Backflow Preventer with PTFE Tape for Secure Plumbing & Backflow Defense
Clearance Floor Drain Backflow Preventer, One Way Valve Sewer Core for Shower Floor Water Drainage, Odor Insect Prevention, ABS Material, Easy Installation, Practical Drain Accessory Was $5.14
Floor Drain Backflow Preventer, One Way Valve Sewer Core for Shower Floor Water Drainage, Odor Insect Prevention, ABS Material, Easy Installation, Practical Drain Accessory
63190 Backflow Preventer 1/2", Single, No Color $78.99
$7899
current price $78.9963190 Backflow Preventer 1/2", Single, No Color
deevoka PVC Drainage Pipe Floor Drain Backflow Preventer Valve for Plumbing Fixtures XL
deevoka PVC Drainage Pipe Floor Drain Backflow Preventer Valve for Plumbing Fixtures XL
Leodye Shower Drain Floor Drain Backflow Preventer Magnetic Levitation One-Way Drain Valve Fast Drainage Shower plug Insert Drain Plug Fit for Tube Was $3.39
Leodye Shower Drain Floor Drain Backflow Preventer Magnetic Levitation One-Way Drain Valve Fast Drainage Shower plug Insert Drain Plug Fit for Tube
High Performances 180 Degree Check Valves ABS Materials Clear Lid Portable for Pool Plumbing Backflow Prevention $38.30
$3830
current price $38.30High Performances 180 Degree Check Valves ABS Materials Clear Lid Portable for Pool Plumbing Backflow Prevention
Clearance Shower Floor Drain Backflow Preventer, One-Way Drain Valve, Sewer Core, Prevents Odors Insects Backflow, Easy to Install, Suitable for Kitchen Bathroom Garage Basement From $3.76
From$376
Shower Floor Drain Backflow Preventer, One-Way Drain Valve, Sewer Core, Prevents Odors Insects Backflow, Easy to Install, Suitable for Kitchen Bathroom Garage Basement
Silicone Floor Drain Backflow Preventer One-Way Valve Shower Drain Core Odor And Insect Stopper For Bathroom Kitchen Sink
Silicone Floor Drain Backflow Preventer One-Way Valve Shower Drain Core Odor And Insect Stopper For Bathroom Kitchen Sink
Drains Backflow Preventer, One Way Shower Floor Drain Valve, Sewer Core for Preventing Odors and Insect Backflow, Durable Metal+PC Construction, 7.5x3cm
Drains Backflow Preventer, One Way Shower Floor Drain Valve, Sewer Core for Preventing Odors and Insect Backflow, Durable Metal+PC Construction, 7.5x3cm
Drain Backflow Preventer 1 Way Drain Valves Sewer Core for Floor Drainage | Shower Floor Drain Backflow Stopper | Metal Floor Unclogger Core $6.20
$620
current price $6.20Drain Backflow Preventer 1 Way Drain Valves Sewer Core for Floor Drainage | Shower Floor Drain Backflow Stopper | Metal Floor Unclogger Core
Clearance Fnochy Backflow Preventer Shower Drain Control, One-Way Sewer Core for Floor Water Drainage, Durable Metal+PC Construction, Easy Installation, Odor & Insect Protection for Bathroom, Kitchen, Basement From $1.18
From$118
Fnochy Backflow Preventer Shower Drain Control, One-Way Sewer Core for Floor Water Drainage, Durable Metal+PC Construction, Easy Installation, Odor & Insect Protection for Bathroom, Kitchen, Basement
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
$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
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