Features:* Made of rubber and aluminum, durable, oil-resistant and aging-resistant.* To introduce fuel into the fuel pump after replacing the fuel filter.* Connects to most hose lengths. One-way function only.* Suitable for carburetor and low pressure fuel systems.* Often used as a hand pump in boats powered by fuel for the onboard engine.* Manual glow primer to match gasoline comes with a one-way valve installed to help prepare the fuel system quickly.* A simple and effective tool for priming diesel engines for cars, motorcycles and boats.* For gasoline transfer, diesel, oil, water, etc. Specifications:Color: Black Material: Alloy & Rubber Metal Valves Size: (Optional) 6mm/8mm/10mm/12mm Dimensions (L*W*H) : 150*50*50MM/5.9*1.96*1.96inch Inlet Pipe Length: 1.2m/3.9ft Outlet Pipe Length: 0.8m/2.6ftPackage Including:1 × Fuel Pump1 × Inlet Pipe1 × Outlet PipePlease 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 1-3mm error. Thank you for your understanding.