RotopaX RX-1W Water Pack - 1 Gallon Capacity SPECIALTY: All the containers Rotopax manufactures for the United States are molded using a patented three-layer Roto-Molding process,along with specialty formulated plastic barrier material to meet the governments new extremely low permeability requirements. DURABLE: Roto-molded 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. AVAILIBLE: Rotopax are the only rotationally molded EPA and CARB compliant containers available for sale in the United States. DIMENSIONS: 9.5 x 13.25 x 3