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Backflow Valve(481)
Uses item details. Price when purchased online
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
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
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
2Pcs Brass Check Valve 1 Inch, Backflow Preventer,1” AG TO IG Return Valve, Rustproof and Watertight,For Water Pipes,Pumps,Gardens,Barrels,Washing Machines From $18.99

Sponsored
From$1899
2Pcs Brass Check Valve 1 Inch, Backflow Preventer,1” AG TO IG Return Valve, Rustproof and Watertight,For Water Pipes,Pumps,Gardens,Barrels,Washing Machines
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
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
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
YAHHU 1/2 in DN15 Female Thread Brass Swing Check Valve, 232 PSI Water Backflow Preventer, 2.76 inches / 7 cm Long, Durable Industrial Plumbing Supply for Normal Temperature One-Way Flow $12.20

$1220
current price $12.20YAHHU 1/2 in DN15 Female Thread Brass Swing Check Valve, 232 PSI Water Backflow Preventer, 2.76 inches / 7 cm Long, Durable Industrial Plumbing Supply for Normal Temperature One-Way Flow
YAHHU Brass 5 Way Check Valve DN25 Spring Loaded Non Return Backflow Preventer Female Male Thread Straight Through Hydrodynamic Control Water Pump Valve (1.26 in / 32 mm) $28.08

$2808
current price $28.08YAHHU Brass 5 Way Check Valve DN25 Spring Loaded Non Return Backflow Preventer Female Male Thread Straight Through Hydrodynamic Control Water Pump Valve (1.26 in / 32 mm)
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
2Pcs Brass Check Valve 1 Inch, Backflow Preventer,1” IG TO AG Return Valve, Rustproof and Watertight,For Water Pipes,Pumps,Gardens,Barrels,Washing Machines From $18.04

Sponsored
From$1804
2Pcs Brass Check Valve 1 Inch, Backflow Preventer,1” IG TO AG Return Valve, Rustproof and Watertight,For Water Pipes,Pumps,Gardens,Barrels,Washing Machines
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
YAHHU 5 Way Check Valve DN32 Aluminium Alloy Backflow Preventer Female Male Spring Thread Preventer (3.94 inches / 10.00 cm) $36.40

$3640
current price $36.40YAHHU 5 Way Check Valve DN32 Aluminium Alloy Backflow Preventer Female Male Spring Thread Preventer (3.94 inches / 10.00 cm)
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 $24.53

$2453
current price $24.53YAHHU JC80 Cast Iron One-Way Check Valve 3/4 in / 1.9 cm for Air Compressors, Heavy Duty Return Valve for Liquid Backflow Prevention
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
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
Inline Check Valve, Solvent Connections Stainless Steel Spring Loaded Backflow Preventer, Quick Assembly Without Disassembling Clamp (40mm) $19.99

$1999
current price $19.99Inline Check Valve, Solvent Connections Stainless Steel Spring Loaded Backflow Preventer, Quick Assembly Without Disassembling Clamp (40mm)
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
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]
Clearance 1.5 Inch Silent Check Valve with Baffle Connector & Stainless Steel Fixture - Backflow Preventer for Plumbing, Sump Pump, Drainage & Sewage System Was $34.35

1.5 Inch Silent Check Valve with Baffle Connector & Stainless Steel Fixture - Backflow Preventer for Plumbing, Sump Pump, Drainage & Sewage System
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
74.3 out of 5 Stars. 7 reviews
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
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
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
BIMZUC Sump Pump Check Valve, 1-1/2 Inch (3.8 cm) Spring Loaded Flapper Quiet Transparent Sewage Pump Backflow Valve $24.57

$2457
current price $24.57BIMZUC Sump Pump Check Valve, 1-1/2 Inch (3.8 cm) Spring Loaded Flapper Quiet Transparent Sewage Pump Backflow Valve
Silent Sump Pump Check Valve - Quiet Backflow Prevention with Clear Body, Durable Plastic and Stainless Steel Clamps, Ideal for Basements and Home Use From $16.89
From$1689
Silent Sump Pump Check Valve - Quiet Backflow Prevention with Clear Body, Durable Plastic and Stainless Steel Clamps, Ideal for Basements and Home Use
check valve,sump pump check valve,backflow preventer 1.5 inch

check valve,sump pump check valve,backflow preventer 1.5 inch
3/8" Inline Backflow Preventer, Air Check Valve, Easy to Install, Plastic High Adsorption Properties for Fuel Gas Liquid - $11.76

$1176
current price $11.763/8" Inline Backflow Preventer, Air Check Valve, Easy to Install, Plastic High Adsorption Properties for Fuel Gas Liquid -
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
304 Stainless Steel NPT Check Valve Backflow Prevention Non-Return Check Valve From $16.90

3 options
Available in additional 3 optionsFrom$1690
304 Stainless Steel NPT Check Valve Backflow Prevention Non-Return 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
Groco CV Bronze In-Line Check Valve $30.70

Sponsored
$3070
current price $30.70Groco CV Bronze In-Line Check Valve
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 From $18.04

2 options
Available in additional 2 optionsFrom$1804
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
Geemin 3/4 Inch Male x Female Brass Check Valves for Horizontal Backflow Prevention $18.34

$1834
current price $18.34Geemin 3/4 Inch Male x Female Brass Check Valves for Horizontal Backflow Prevention
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
Clearance Quiet Sump Pump Check Valve,Clear, Silent Backflow Valve with Spring Loaded Flapper, Reduces Water Hammer Noise 1.5in From $23.17
From$2317
Quiet Sump Pump Check Valve,Clear, Silent Backflow Valve with Spring Loaded Flapper, Reduces Water Hammer Noise 1.5in
USHOBE Pipe Flange Duct Connector Valve for Backflow Prevention with Easy Install White Plastic $19.84

$1984
current price $19.84USHOBE Pipe Flange Duct Connector Valve for Backflow Prevention with Easy Install White Plastic
AC Drainage Valves PVC Stainless Steel Backflow Prevention, Leakproof Design for Residential/Commercial Cooling Systems From $9.29
From$929
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, 1-1/2 in. Press Connections, Cast Brass

Midline Valve Inline Spring Loaded Check Valve, Backflow Prevention, Lead-Free, 1-1/2 in. Press Connections, Cast Brass
Geemin 3/4 Inch Brass Horizontal Design Valves One Direction Flows Valves for Water Tanks Resistant Brass Check Valves 3/4 Inch Backflow Preventer Valves for Home $15.73

$1573
current price $15.73Geemin 3/4 Inch Brass Horizontal Design Valves One Direction Flows Valves for Water Tanks Resistant Brass Check Valves 3/4 Inch Backflow Preventer Valves for Home
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
Riousery Quiet Sump Pump Check Valve Clear Silent 2-Inch (5.08 cm) PVC Pipe Backflow Preventer with Spring Loaded Flapper $32.30

$3230
current price $32.30Riousery Quiet Sump Pump Check Valve Clear Silent 2-Inch (5.08 cm) PVC Pipe Backflow Preventer with Spring Loaded Flapper
RANMEI 304 Stainless Steel Npt Check Valve Backflow Prevention Non-Return Check Valve From $10.59
From$1059
RANMEI 304 Stainless Steel Npt Check Valve Backflow Prevention Non-Return Check Valve
Silent Sump Pump Check Valve, Spring-Loaded Quiet Backflow Prevention With Transparent Body and Durable Clamps, Reliable Water Flow Control for Basement Bathroom Laundry Rooms From $31.03
From$3103
Silent Sump Pump Check Valve, Spring-Loaded Quiet Backflow Prevention With Transparent Body and Durable Clamps, Reliable Water Flow Control for Basement Bathroom Laundry Rooms
Zorvai Secure CO2 Backflow Preventer Check Valves Stainless Steel for Safety $12.26

$1226
current price $12.26Zorvai Secure CO2 Backflow Preventer Check Valves Stainless Steel for Safety
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
1/2 inch Way Backflow Preventer Check Valves Copper Threaded Check for Valve Connector $7.76

$776
current price $7.761/2 inch Way Backflow Preventer Check Valves Copper Threaded Check for Valve Connector
Lerpwige Brass Non Return Valves Horizontal Mounting Prevents Liquid Backflow for Home

Lerpwige Brass Non Return Valves Horizontal Mounting Prevents Liquid Backflow for Home
High Efficiency Air Conditioning Drain Valves Leakproof Design Easy Installation Backflow Prevention Valves for Repair From $8.97
From$897
High Efficiency Air Conditioning Drain Valves Leakproof Design Easy Installation Backflow Prevention Valves for Repair
Midline Valve Swing Check Valve, Backflow Prevention, Lead-Free, 1 in. FIP Connections, Cast Brass From $15.71

9 options
Available in additional 9 optionsFrom$1571
Midline Valve Swing Check Valve, Backflow Prevention, Lead-Free, 1 in. FIP Connections, Cast Brass
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