Rotopax Spout Screw Cap 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&#39; new e 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.Replacement spout screw cap.Sold individually.