Features: 100% brand new and high quality One way check valves can prevent fuel from returning back to the tank and holds it in the line. Arrow marked on valve, showing fluid flow direction. Easy installation and replacement. It is suitable for all sizes of one way valves, non return valves, check valves, oil supply valves, oil pumps , hand pumps and aluminum joints. It is suitable for all sizes of oil supply joints and hand pumps. Medium used: gasoline, water, etc. (not suitable for methanol, because methanol will produce formic acid when electrified, which will corrode the inside of the product and lead to product failure) Scope of application: car, ship, helicopter, ship, motorcycle and other fuel systems. Advantages: gasoline resistant and aging resistant. Specification: Color: Silver Material: Aluminum Alloy Size: app. 50x15mm(1.97x0.59in) Opening pressure: 0.2 bar Working pressure range: 0.2-6 bar Temperature range: -30 -130 Optional specification: M6/M8/M10/M12 Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Valve(other accessories demo in the picture is not included.)