Feature: Professional grade non-return valve - Ideal for marine, automotive, caravans/RV, and agriculture Arrow marked on valve, showing fluid flow direction, Prevents fuel from returning back to the more→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... Color: White Material: Plastic Hose size: 4mm / 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 one way check valve