Kenhihi One Way Aluminum Fuel Non Return Check Valve for Petrol Diesel Oil Water Chrome Car Auto Carburettor Low Pressure Systems - Perfectly solve the problem that your vehicle is hard or slow starting issues - Made of premium aluminum alloy material, better performance, anti-corrosion. - This nonreturn valve can prevent fuel from returning back to the fuel tank and keeps it in the line when the engine is at rest. - One-way valve is marked with the arrow. It shows fluid flow direction. It is suitable for petrol, diesel, oils, water and other fluids. - Fuel Non-return check valve is widely used in cars, marine, caravans, helicopters, ships, motorcycles and so on. - One way aluminum valve can be used for many diesel/ biofuel systems / Carburetors and low-pressure fuel systems. ➤Please Note!! - This fuel one-way check valve cannot be used in methyl alcohol because formic acid will be produced while it is powered on, which will make it unusable. ➤Specification Material: Aluminum Alloy Working Pressure: 2.9-87 psi (0.2-6 bar) Operating Temperature: -30 ℃ - 130 ℃ ➤Package Included 2 piece12mm Fuel Non Return Check Valve 4-piece 16mm universal adjustable hose clamps