Use a Dura-Cast 20 gallon plastic water tank to meet your temporary water storage needs. The 20 gallon Dura-Cast water tank is made exclusively from FDA approved resin, making this the perfect solution for potable water storage. This tank performs well in uses ranging from drinking water to camping and gardening to disaster preparation. Dura-Cast water tanks are seamless, lightweight, easy to clean, corrosion and rust resistant. Black and green color options slow the growth of algae, keeping your water fresh for longer. These vertical water tanks are compounded with UV stabilizers to ensure longevity. Dura-Cast water tanks are rotationally molded to the highest quality standards in the industry.