Seachoice - Low Perm Fuel Line Kit - Mercury - 21391. Fast priming high output primer bulb. Kink resistant heavy duty fuel line. Compatible with ethanol blended fuels. Engineered low permeation material prevents fuel evaporation, saving fuel and money. Bulb engineered to maintain flexibility and prevent collapse in hot and cold temperatures. Industry leading vertical fuel draw for priming in any application. Kit Includes:. Low permeation primer bulb. Fuel line fittings. Stainless steel hose clamps. 3/8" fiber-reinforced fuel line for additional strength and kink resistance. Meets all EPA, CARB, USCG and ABYC Requirements