attwood 8803LP2 EPA and CARB Certified 3-Gallon Portable Marine Boat Fuel Tank Automotive-grade, multi-layer construction withstands the pressure build-up associated with closed fuel Systems Cap with built-in vacuum valve means no need for manual venting Compatible with 1/4-inch npt fuel fittings Meets epa and carb (California air resources board) regulations Attwood develops high value, engineered marine products to make life on the water easier to enjoy