Features: and high quality One way check valves prevent fuel from returning to the tank and keep it in the line Arrow marked on the valve indicates fluid flow direction Easy installation and replacement Suitable for various sizes of one way valves, non-return valves, check valves, oil supply valves, oil pumps, hand pumps and aluminum joints Compatible with different sizes of oil supply joints and hand pumps Medium used: gasoline, water, etc. (not suitable for methanol, as methanol may produce formic acid when electrified, which can corrode the internal components and cause failure) Application scope: car, ship, helicopter, motorcycle and other fuel systems Advantages: gasoline resistant and aging resistant Specification: Color: Silver Material: Aluminum Alloy Size: approx. 50x15mm (1.97x0.59in) Opening pressure: 0.2 bar Working pressure range: 0.2-6 bar Temperature range: -30 to 130°C Optional thread sizes: M6/M8/M10/M12 Quantity: 1 piece Note: Transition: 1cm = 10mm = 0.39inch No retail packaging Allow 1-3cm error due to manual measurement; please confirm you are okay with this before purchasing Due to differences in monitor displays, the actual color may vary slightly from the image Package includes: 1 x Check Valve (other accessories shown in the picture are not included)