1. Ideal for vehicles without ESP priming, with 1 or 2 tank systems, it is mostly used on outboard or inboard boat engines2. Often used as a hand pump in boats to supply fuel to the outboard motor3. Simple and effective tool for filling diesel engines on cars, motorcycles and boats4. For introducing fuel into the fuel pump after replacing the fuel filter5. Connects to the largest part of the hose. One-way functionSpecification:Description:This fuel pump is used to transfer gasoline or and comes with a one-way valve installed to quickly fill the fuel system. It is an ideal tool for vehicles without ESP priming, with 1 or 2 tank systems, and is most often used on outboards or inboards. Made from the best rubber and aluminum materials, quality and performance are guaranteed! Don't miss it!Features:Perfect for vehicles without ESP priming, with 1 or 2 tank systems, it is mostly used on outboard or inboard boat engines.Widely used. as a hand pump in boats for supplying fuel to the outboard engine.Simple and effective tool for topping up diesel engines on cars, motorcycles and boats.For introducing fuel into the fuel pump after changing the fuel filter.For transferring of petrol, , oil, water etc.Connects to the larger part of the hose. One way function.Made of best rubber and aluminum material, durable, oil resistant and aging resistant.Specifications:Material: Rubber AluminumColor: BlackSize (L x W ): 150 x 43mm/5.9 x 1.7Input Connectors: 6mm(1/4), 10mm/(3/8), 12mm/(1/2) ( Optional) Item quantity: 1pcPackage weight: About 80gFit: Universal for most cars, motorcycles and boats.Package included:1 x Fuel Pump Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin