Sets the full level of fuel in the tank Prevents liquid fuel from reaching the carbon canister or vent system during vessel operation, trailering and storageCompatible with Ethanol blended fuels and plastic and aluminum tanksPasses all USCG CFR 33 and ABYC H-24 fire test requirements and CARB and EPA requirementsIntegrated high-performance gasket includedAssembly Guide aligns the FLVV and gasket with tank for faster installation