Stay Ahead with Check Valve’s Cutting-Edge Designs

Your lifestyle upgrade starts here—shop our exclusive Check Valve collections.

2 Pieces Inline Check Valve One Way Non Return Check Valve Plastic Water Non Return Valves for Water Fuel Gas Liquid Air

4.1

$10

THE WHITE SHOP Barb Hose One Way Inline Check Valve Non Return Ozone Resistance Plastic One-Way Fuel Oil Water Gas Pump Air Check Valve, 2 Pcs (Size : 4MM)

$19

Pawfly Aquarium Check Valves Plastic One Way Non-Return Check Valve for Fish Tank

4.5

$11

Marina Plastic Check Valve/ Non Return Valve

4.5

$7

Cryfokt Wiper Washer Windshield Check Valve, 85321-28020 Reliable 2pcs for Car Replacement for Scion IM IQ, Windshield Washer Check Valve, Windshield Windscreen Washer Check Valve

$5

Superior Pump 99522 9953 1-1/2 in. Rubber Boot Check Valve, 1-1/2", Black

4.6

$20

ATIE Pool 7056 Check Valve Cover with Flapper Assembly For Zodiac Jandy Check Valve 7235, 7236, 7305, 7511, 7512. (Include: 7451 Flapper, 7302 Spring, 7304 Pin, 7236 Cover, and 1132 O-Ring) (2-Pack)

4.4

$61

Pawfly 6 PCS Aquarium Air Pump Check Valves Red Clear Plastic One Way Non-Return Check Valve Fish Tank

4.5

$21

EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS)

4.5

$22

15mm DZR Non Return Double Check Valve Isolation

4.4

$34

Cystarry 2 PCS Stainless Steel One Way Check Valve,Air CO2 Line Tubing Regulator for Anti-Backflow Non-Return in Aquarium System

3.6

$20

15mm Single Check Valve WRAS Approved Compression Fitting Non Return Valve one Way Isolation Valve DZR Prevents Backflow Durable Construction (15mm)

4.8

$14

12Pcs PP Check Valve One Way Air Valve Inline Check Valve Single Way Non Return Valve Plastic Water Stop Check Valve for Fish Tank and Chemical Industry (4mm)

5.0

$17

Zoeller 30-0181 PVC Plastic Check Valve, 1-1/2 Inch

4.6

$48

PumpSpy Silent Check Valve - 1-1/2" with Buna-N Couplings, Model CV-150, Spring-Loaded Flapper, Sump Pump Life Expectancy Increase, Includes Steel Clamps Fit 1-1/2″ Pipe

4.7

$54

Dymax Check Valve Pack of 2

4.4

$6

Khazna Check Valve, 8mm One Way Aluminium Fuel Non Return Fuel for Petrol Diesel Oil Water Chrome Car Auto Carburettor Low Pressure Systems (2 PCS)

$13

Tiardey2Pcs Check Valve Stainless Steel One Way Non-Return Check Valve for Aquarium Co2 System Aquarium CO2 Diffuser

$11

JZS Fuel Check Valve One Way Inline Non Return Diesel Gasoline Silver,3/8",2PCS,10mm OD

$11

AQUANEAT Aquarium Check Valve, One Way Non Return Valve for Aquarium Air Pump, Check Valve for 3/16 Inch Airline Tubing, Fish Tank Accessories, 10pcs (Red)

4.3

$12

VAYINATO® Air Pump One Way Non-Return Check Valve (Black) for Aquarium Fish Tank (Pack of 5) by Petzlifeworld

4.1

$6

THE WHITE SHOP 2PCS Brass Check Valve Female Thread, Backflow Prevention, One Way Check Valves (Color : DN25)

$22

4pcs Aquarium Check Valves for Common Air Pumps,Aquarium Air Pump Check Valves Red Clear Plastic One Way Non-Return Check Valve Aquarium Air Pump Accessories for Airline Tubing Fish Tank,4mm

4.5

$8

8mm One Way Aluminium Fuel Non Return Fuel Check Valve for Petrol Diesel Oil Water Chrome Car Auto Carburettor Low Pressure Systems(2 Packs)

4.5

$15

EZ-FLO Brass In-Line Check Valve, 1 Inch IPS, Stainless Steel Spring, 20405LF

4.7

$25

Control Devices P2525-1WA Brass Ball Check Valve, 1/4" NPT Female x NPT Male

4.6

$5

HYDRO MASTERPlastic Sump Pump Check Valve with Stainless Steel Clamps for 1-1/2 inch or 1-1/4 inch

4.5

$26

Check Valve, 3/8 Inch 10 mm ABS Plug-in Check Valve Fuel Oil Water Gas Air One-Way Check Valve for Liquids and Gases (6 Pieces)

4.4

$18

DC12V Electric Solenoid Valve, G1/2 Inch HIgh Temp Drain Valve with Check Function, Detachable Filter Device, for Water Dispensers, Washing Machines, Dishwashers

$13

THE WHITE SHOP 2PCS Thread Spring Check Valve, Brass Non Return One Way Horizontal Check Valve, Vertical Inline Water Check Valve for Well, Pump, Tank, Backflow Prevention (Size : 134G)

$33

UNIK Forged Brass Swing Check Valve (Size 1.25" 32mm)

5.0

$27

Jainsons Pet Products Aquarium PP Plastic Check Valve Hose Non Return One Way Transparent Check Valve Air Pump Accessories (5 PP Plastic Check Valve)

4.5

$9

CentIoT - One-Way Non-Return inline check valve - Transparent Plastic - for Water liquid gas (PP 12MM)

4.2

$7

YILANJIN 1" Foot Valve with Check Valve, Brass Foot Valve, Foot Valve with Stainless Strainer for Pump

$10

Aquarium Air Pump Check Valve 12PCS Fish Tank One Way Non-Return Check Valve Air Pump Accessories for 3/16 Inch Airline Tubing

4.5

$8

VILLCASE Ball Valve, Safety Valve Relief Pressure Valve Bibb Boiler Drain Elbow Stop Valve Air Compressor Valve Thermal Safety Relief Valve Water Hose Connector Brass Valve Nickel Plated Water Hose

$11

Air Check Valve BSPP One Way Valve Gas Pipe Connection Female Thread Water Pipe Connection 304 Stainless Steel (-1012190000411)

$10

VAYINATO® Blue Plastic One Way Non-Return Valve Check Valve Aquarium Air Pump Accessories (Pack of 5) by Petzlifeworld

4.3

$7

Marina Plastic Check Valve/Non Return Valve

4.6

$15

Pepisky 12mm Inline One-way Non-return Check Valve Fuel Water Gas A Vacuum Aluminum Valve

$4

mxuteuk 2Pcs 3/8" 10mm Aluminium Silver Non Return One Way Check Valve with 4Pcs 6-12mm Universal Adjustable Hose Clamps for Fuel Petrol Diesel Line Oil M-H-032-10mm

4.4

$16

Vayinato Aquarium Air Pump Check Valve One Way, 2 Pcs - Fish Tank Non-Return Valve Plastic Accessories (Red)

3.8

$6

Campbell Check Valve Quiet CLR1.5 by Brady MfrPartNo 0823-15C, White

4.7

$49

Valterra 200-C15W PVC Swing (No Spring) Check Valve, Clear, 1-1/2" Slip

4.3

$24

MerrillMFG CVNL100 1" No-Lead Brass Check Valve 700 Series, 1"

4.6

$28

Litoexpe 1/2" One Way Inline Check Valve, Non Return Ozone Resistance PVDF Plastic One-Way Fuel Oil Water Gas Pump Air Check Valve, Pack of 2

4.4

$14

MAKINGTEC 8mm One Way Aluminium Fuel Non Return Fuel Check Valve for Petrol Diesel Oil Water Chrome Car Auto Carburettor Low Pressure Systems (2 Packs)

2.3

$18

Check Valve 3/4 inch

3.7

$10

Petzlifeworld 10 Nos Non-Return Check Valve For Aquarium Air Pump Airtube

3.9

$8

Royalford Safety Valve

4.5

$5

Inline Check Valve, 12 mm Plastic Inline Check Valve, Fuel Gas Liquid Air Air Unidirectional Check Valve Water Gas

$5

ALEGI 10 Pack 1/4 inch Plastic Check Valve, One Way Barb Hose Inline Non Return For Fuel, Oil, Water, Air (1/4 inch)

4.0

$29

CentIoT - One-Way Non-Return Inline Check Valve - Aluminium Alloy with NBR valve - for fuel Petrol Diesel (6MM)

4.1

$8

URO Parts 058905291K Vacuum Check Valve

4.6

$13

CentIoT - One-Way Non-Return inline check valve - plastic Transparent - for Water fuel gas liquid (10MM)

4.4

$7

ABBASALI Brass Check Valve-Vertical Check Valve Size 1/2 inch-Control Water Flow and Pressure

$7

MAKINGTEC Air Compressor Valve, Brass Valve Mini Ball Valve Drain Valve, 1/4" NPT Male x NPT Female Thread Accessories for Air Compressors (2 Pcs)

3.3

$20

QWORK 2Pcs Brass One-way Check Valve, 1/2" Female to 1/2" Male Thread of Backflow Preventer

4.0

$16

THE WHITE SHOP Check Valve Brake Booster No Return Inline One Valve Non Return Valve Vacuum Hose Aluminum Valve (Color : 10MM)

$17

Brass Check Valve 1/2" Male to 1/2" Female Thread Non Return One Way Backflow Preventer Nickel Plated Valve Connect Supply Hose for Rv Heater, Toilet , Water Tower 2PCS

$14

Plastic Check Valve, 12 mm In-Line Check Valve, One-Way Non-Return Check Valve for Water Fuel Gas

$6

PAGOW 2 Pack 1/4 Inch (6mm) Check Valve, PVDF Wear-Resistant One-Way Check Valve for Fuel Gas Liquid Air, plastic water stops check valve, Micro Diaphragm Check Valve for Air Intake Feed

4.0

$14

EVIL ENERGY 5/32" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(4mm OD,2PCS)

4.4

$13

GM Parts Genuine 15-50568 Vacuum Check Valve

5.0

$17

Superior Pump99555 Universal Check Valve, Black, Pack of 1

4.4

$25

DELFINO Aquarium Air Pump Check Valves Plastic One Way Non-Return Check Valves 16pcs Aquarium Air Pump Accessories for Fish Tank Air Line Tube Tubing Hose Pipe Fitting Black Red Air Pump Accessories

3.0

$13

Safety Valve, Durable Brass Water Heater, Practical Safe Great Workmanship for + 100℃ 0.9Mpa

$7

MAKINGTEC Control Devices 4 Pieces 1/4in Male NPT Brass Safety Valve Pressure Relief Valve Air Compressor Check Valve (150 psi Set Pressure)

$21

Dorman 80189 Check Valve and Grommet Assortment - 3 Piece

4.4

$26

Eujgoov Return Air Damper Air Duct Return Blocker Duct Check Valve Suitable for Duct Connections

$21

One-way Check Valve TAODAN 2PCS 1/2inch Female to 1/2inch Male Thread Backflow Preventer, Non Return One Way Brass Check Valve

$11

2 Pack Wiper Washer Windshield Check Valve Replacement for Toyota, Scion, Lexus- OEM: 85321-28020

$23

B&K Aluminum Alloy CO2 Bubble Counter with Check Valve for Aquarium Carbon Dioxide Measurement Device (Single Head)

4.7

$12

gm Genuine Parts 15823207 Power Brake Booster Vacuum Check Valve Kit With Check Valves And Grommet

5.0

$34

Pawfly 6 PCS Aquarium Check Valves One Way Non-return Protector Air Pump Accessories for Fish Tank,Black

4.3

$11

THE WHITE SHOPTrue Union Check Valve, 1-1/2'' PVC Check Valve, 1pcs Combination Check Valve, Heavy Duty Ball Check Valve, with Slip Full Port, Slip x Slip Connection,for Fluid Systems Backflow Preven

$25

22mm Single Check Valve Non Return Check Valve Compression Fittings

4.2

$17

12PCS Check Valve Aquarium, One Way Air Pump Valves Non-Return Aquarium Check Valve for 4mm/0.15" Airline Tubing, Aquarium Air Valve Fish Airline Tubing Accessories Pipe Fitting (Red)

$15

10Pcs Anti Backflow Check Valve One Way PP Plastic Non Return Diaphragm Barb for Air Intake Feed Hose Pipe Fitting (4mm Blue)

5.0

$14

QWORK® Check Valve, One-Way Non Return ABS Valve 3/8" 10mm for Fuel Gas, 2 Pcs

4.2

$12

FTVOGUE 10Pcs One Way Non-Return Check Valve Aquarium Fish Tank Oxygen Air Pump Check Valve(03)

$15

SHYNE Premium 3/4 Inch Non Return Check Valve Made of Brass Robust, Rust-Proof and Waterproof for a Pump, Fountain, Washing Machine, Garden, Rain Butts, Barrel

4.6

$14

Plastic Check Valve, Non Return Check Valve, 12mm Inline Check Valve Fuel Diesel Gas Liquid Air One Way Non Return for Wide Use

4.0

$13

NPH 15mm Single Check Valve Compression/Non Return Valve

5.0

$14

Uenhoy 5 Pcs Check Valve Non Return Ozone Resistance PVDF Check Valve, 1/4 Inch (6mm) One-Way Check Valve for Fuel Gas Air Liquid

4.5

$14

Dorman HELP! 80190 Brake Check Valve

$6

DBOO 6mm 1/4" Fuel Non Return One Way Check Valve 2 Pcs Aluminum Alloy Fuel Check Valve 1/4 Inch Air Fuel Oil Check Valve for Fuel Line Petrol Diesel

$6

John Guest Push Fit Single Check Valve 12mm (12SCV)

4.9

$22

15mm DZR Double Check Valve WRAS Approved Compression Fitting Non Return Valve One Way Issolation Valves Prevents Backflow and Contamination.

$22

One Way Check Valve Fuel,Tianher 4 Pcs Fuel Non-Return One Way Aluminium Check Valve Diesel Fuel Oil for Petrol Water Marine Alloy Chrome Car Auto Carburettor 6mm 8mm 10mm 12mm With 10 Hose Clamp.

4.4

$14

BE-TOOL Spring Check Valve 1/2" 18.5mm Brass Check Valve Non Return Single Check Valve for Water, Oil, Steam and Other Media (Pack of 1)

4.4

$29

15mm Double Check Valve - DZR Compression

4.3

$12

Mesee2 Pieces 10MM Fuel Non Return Check Valve, Aluminium Alloy One Way Fuel Line Check Valve for Petrol Diesel Oil Water Auto Carburettor Low Pressure Systems Car Fuel Hose

3.9

$17

Aqua One Airline Check Valve/Non-Return Valve (2pk) for Aquarium Air Line Safety

4.3

$12

uxcell Nickel-Plated Copper One Way Air Check Valve G 1/4 Female Threaded Full Port Check Valve 2Pcs

4.1

$10

Amrxuts 12mm 1/2" Fuel Non Return One Way Check Valve Petrol Diesel Fuel Oil Water Aluminium Alloy

$8

15mm Single Check Valve (DZR) (WRAS Approved)

$7

Interpet Aquarium Fish Tank Air Pump Line Check Valve, Prevents Damaging Back Siphoning, For all Types of Aquarium Air Pump

4.6

$6