REVIEWS
Daqian World Commodity Store 3/8 Check Valve of 2026
By Daqian World Commodity Store Editor • 2026-09-20
Disclosure: As an Amazon Associate, we earn from qualifying purchases made through links on this page. Our assessments are based on hands-on testing. Buying through our links does not affect your price but supports our research.
Daqian World Commodity Store 3/8 Check Valve
of September 2026
1

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

Best Value
Blulu
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)
3
Quickun
Quickun 3/8" Barb Hose One Way Inline Check Valve Non Return Ozone Resistance PVDF Plastic One-Way Fuel Oil Water Gas Pump Air Check Valve, 2 Pcs
4
John Guest
John Guest 3/8 Inch Imperial Single Check Valve, Push To Connect Plastic Plumbing Fitting, 3/8SCV
5
ESHIONG
ESHIONG 3/8" Push to Connect One Way Check Valve for RO(Reverse Osmosis) Water Filter,NSF Certified Plastic Quick Connect RO Fittings (2 pcs)
6
Stenner Pump Company
Stenner Pump Company UCINJ38 Injection Check Valve 3/8-Inch
7
John Guest
John Guest 3/8" One Way Check Valve RO Reverse Osmosis Water Filter NSF Certified
8
Baomain
Baomain Female Threaded Air Gas Water Non Return One Way CV-03 Check Valve 3/8 PT
9
HYDRO MASTER
HYDRO MASTER Mechanical Water Mixing Valve, 3/8" Compression Fittings on inlets and Outlet
10
Fir-O-Matic
Fir-O-Matic B105HCV Check Valve 3/8" Flare X 3/8" Flare Silver Cap
11
BBTUS
BBTUS Check Valve, 2Pcs 3/8" 10mm Inline ABS One Way Water Non Return Check Valve For Fuel Gas Liquid Air
12
mxuteuk
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
13
VIAIR
Viair 92833 3/8" Female to 3/8" Male NPT Check Valve, Nickel plated brass
Click here to learn more about these products.
EVIL ENERGY 3/8" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Black(10mm OD,2PCS)
Material Made of aluminum alloy check valve,304 stainless steel spring,NBR rubber gasket and O-ring.. Size 38inch 10mm OD.. Parameter Min upstream pressure0.2bar2.9psi,working pressure range 0.2-6bar 2.9-87psi,operating temperature range -22 to 266.. Medium Applicable to water, petrol, diesel, gas, oil, air, and other fluids.Methanol is not recommended. Application The fuel line check valve is widely uesd in vacuum system,carburetors and low pressure fuel systems..
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)
Material this check valve is made of ABS plastic, and the internal valve core is made of silicone, ABS plastic has high hardness, good heat resistance and corrosion resistance, strong resistance to acids and alkalis, and is resistant to organic solvents to some extent. Suitable size you will get 6 no-return check valves with a size of 38 inch, which is 1.61 inches long, enough quantity to meet your use of check valves in different situations to prevent fluid backflow. Function introduction 38 check valve is applied in fluid system to prevent fluid backflow, or applied in pneumatic system to prevent compressed air backflow This check valve can be applied in the temperature range of -20 degrees Celsius to 70 degrees Celsius. Widely use one-way valve can be applied in water process, air purification, automobile parts, machinery industry, household appliances, etc., to effectively prevent backflow of the medium. Note when installing the check valve, pay special attention to the flow direction of the medium The normal flow direction of the medium should be consistent with the arrow direction indicated on the valve body, otherwise the normal flow of the medium will be cut off.
Quickun 3/8" Barb Hose One Way Inline Check Valve Non Return Ozone Resistance PVDF Plastic One-Way Fuel Oil Water Gas Pump Air Check Valve, 2 Pcs
MaterialThe shell material is PVDF, and the Diaphragm material is silicon rubber. Diameter 38 barb, can fit 38 hose ID. PerformanceNormal performance under 25 to 60 ,Strong resistance to acid, alkali, salt corrosion ability. ApplicationCheck valve is used in fluid system to prevent reverse flow fluid, or used in pneumatic system to prevent reverse flow of compressed air. Total length 43mm1.69 inch.
John Guest 3/8 Inch Imperial Single Check Valve, Push To Connect Plastic Plumbing Fitting, 3/8SCV
COMPATIBILITY accepts nylon and polyurethane tube fittings. QUALITY made of acetal copolymer plastic for low moisture absorption and high tensile and flexural strength. DURABILITY Provides excellent chemical resistance. SAFE FDA-compliant material NSF 61 and 51 certified. PERFORMANCE Rated to 145 PSI.
ESHIONG 3/8" Push to Connect One Way Check Valve for RO(Reverse Osmosis) Water Filter,NSF Certified Plastic Quick Connect RO Fittings (2 pcs)
MaterialPOMPolyoxymethylene . Food-grade material, BPA freeNSFTUVSGS certificated etc.. SpecificationStraight 38 inch To 38 inch OD Tube quick connect One-way Valve.Standard fitting for about 9.5mm water filter systems tube.. InstallationNon-Locking Clip design offers an easy DIY installation without any tools .Push fit fittings ,100 leak free.. Package Quantity2 pack. ApplicationCommonly used on outlet hose for reverse osmosis RO systems of laundry,gardening,beverage dispensing,refrigerator,ice maker,coffee machine,etc..
Stenner Pump Company UCINJ38 Injection Check Valve 3/8-Inch
Injection Check Valve 38. Manufactured to the highest standards to provide you with a quality product. Model Number UCINJ38. Item Package Weight 1.0 lb.
John Guest 3/8" One Way Check Valve RO Reverse Osmosis Water Filter NSF Certified
Part 38SCV.
Baomain Female Threaded Air Gas Water Non Return One Way CV-03 Check Valve 3/8 PT
Thread Diameter 38 PT 16mm. Total Size 43 x 19mm 1.69 x 0.75 LW . This valve can make the medium air, water, oil flow in one direction.
HYDRO MASTER Mechanical Water Mixing Valve, 3/8" Compression Fittings on inlets and Outlet
Made of lead free brass construciton.. Includes built-in check valves.. Exterior Finish Chrome.. 38-Inch compression fittings on inlets and outlet.. Designed to install under the lavatory..
Fir-O-Matic B105HCV Check Valve 3/8" Flare X 3/8" Flare Silver Cap
166 Degree F temperature rating. Check valve used to prevent 'back-flow' in fuel oil lines. ULulc listed design. Product Dimension 2.0L x 1.75W x 1.0H.
BBTUS Check Valve, 2Pcs 3/8" 10mm Inline ABS One Way Water Non Return Check Valve For Fuel Gas Liquid Air
Material The shell material is ABS resin, and the Diaphragm material is silicon rubber. Performance Normal performance under 25 to 60 ,Strong resistance to acid, alkali, salt corrosion ability. Application Check valve is used in fluid system to prevent reverse flow fluid, or used in pneumatic system to prevent reverse flow of compressed air. Diameter 10mm0.39 inch. Total length 43mm1.69 inch.
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
Product FunctionPrevent fuel from returning to the fuel tank and keep it normal.. Integrated design, small and convenient, easy to use. Resistant to diesel oil, gasoline and aging.. Application RangeFuel systems of automobiles, ships, helicopters, ships, motorcycles, etc.. Product ParametersOpening pressure 0.2 bar2.9psi, working pressure range0.2-6 bar2.9-87 psi, working temperature range -30 -130.. Packaging Includes2PCS 10mm fuel one-way check valve and 4PCS 6-12mm stainless steel Universal Adjustable Hose Clamps.
Viair 92833 3/8" Female to 3/8" Male NPT Check Valve, Nickel plated brass
Nickel plated Brass Fitting. 38 inch Female NPT to 38 Male NPT check valve.. Airflow flows from Female to Male port. Cracking Pressure 6 PSI. Maximum Operating Pressure 250 PSI. To be used with atmospheric air only, not recommended for any type of liquid or other gases. Use thread sealant for proper installation. Teflon tape is not recommended.. Properly sealed, recommended torque is 12 to 15 ft. lbs.. NPT fittings are tapered and should not be overtightened..