The Nuova Rade Fuel Primer Bulb Medium is the reliable, easy-to-use solution for smooth fuel delivery in outboard engines.Designed specifically for 7-8 mm fuel hoses, this medium-size primer bulb is ideal for small to medium outboard motors and fuel systems. It makes starting your engine effortless by allowing you to quickly prime the fuel line with just a few squeezes, eliminating air locks and ensuring consistent fuel flow from tank to engine.Typically recommended for outboard engines up to 15hp depending on the size of your fuel line.FeaturesDurable, fuel-resistant materials built to withstand marine conditions, UV exposure, and repeated squeezing without cracking or leaking.Highly resistant to gasoline, diesel, and ethanol-blended fuelSOne-Way Valve Design: Efficiently draws fuel forward and prevents backflow for faster, more reliable priming.Easy Installation: Simply cut into your existing fuel line. Hose clips recommended (sold separately)SpecificationsDiameter: 7mm or 8mm (5/16″) fuel hoseMedium Size: 39 mm diameter approx. 130 mm lengthNuova Rade product number:44476Material: High Strength UV Resistant PVC