ITEM NAME:3x 8mm 5/16'' Marine Boat Motor Gasoline Petrol Description: For introducing fuel into the fuel pump after replacement of the fuel filter. One-way only function. Connects to any length of hose, easy to use. Bulb engineered to maintain flexibility and prevent collapse in hot and cold temperatures Fitment : Suitable for cars,motorcycles,Boats, RVs, Tractors, and Caravans. Specification: Material: Rubber and Metal Color: Black Total Length: Approx. 147mm/ 5.79 inch Interface diameter: 8mm/ 5/16 inch Inner diameter: 5.6mm/ 0.22inch Package Includes: 3 Pieces Bulb hand pump Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making.People always bought together with. SKU: DMO0019320919501286. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3 Pieces Bulb hand pump.