Features: Professional grade non-return valve - Ideal for marine, automotive, caravans/RV, and agriculture Arrow marked on valve, showing fluid direction. Prevents fuel from returning back to the tank and keeps it in the line. Easy to install, no assembly required. Can be used on any UTV, Side by side, Quad, Dirtbike, Jetski, Waverunner, Boat, Truck, Car, Motorcycle, Tractor, Camper, Lawn Mower, Blower, Pressure washer, etc... Specifications: Color: Transparent Material: Plastic Hose size: 3mm/4mm / 5mm/6mm / 8mm / 10mm/ 12mm Opening pressure: >0.015MPA Compatible: Suitable for water, petrol, diesel, oils and other fluids Quantity: 1 pc Package Included: 1 x way check valve. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Manual measurement, please allow 1-10mm error. Thanks for your understanding. https://00c9c0f6.img.yafex.com/upload/product/2021/10/20/EEE0059937/original/66585bc25d5a9915f639e041ab6920ed.jpeg https://00c9c0f6.img.yafex.com/upload/product/2021/10/20/EEE0059937/original/c386f6c76585b9524f0b288ae921ef99.jpeg