RotopaX are the only EPA and CARB compliant fuel containers available for sale in the United States! This is thanks to a patented three-layer roto-molding process, along with specially formulated plastic barrier material to meet the governments' new extremely low permeability requirements. RotopaX (patent pending) are proudly made in the U.S.A. by the original manufacturer of the first generation fuel and water packs. RotopaX are indisputably superior products. Spout kit includes: Yellow self-venting spout with rubber gasket, and stopper. Note: This spout is only supplied with water packs and internationally shipped fuel packs.