rotopax rx-4g gasoline pack - 4 gallon capacity rotopax roto-molded gas can that is durable with thicker walls and stronger construction make it leak-proof along with a sure seal gasket to guarantee your spout wont leak or vibrate loose. rotopax are the only rationally molded epa and carb compliant containers available for sale in the united states. this is thanks to a patented three layer roto-molding process, along with specialty formulated plastic barrier material to meet the governments new extremely low permeability requirements. � interchangeable with roto pax brand mounts seven layer blow molded technology sleek, low profile design versatile mounting capability individually pressure tested mounting kit sold separetely 5 year manufacturer's warranty made in the usa epa and carb approved dimensions: 34 1/2"h x 13 1/4"w x 3"d note: always remember to vent the fuel pack once per day if the elevation or temperature changes significantly