25 gallon to 50, 000 gallonMaterials: 22 oz., 30 oz., PVC, all XR materials, all urethanes including MIL specNSF 61 (potable for drinking water), food grade (wines, juices, vegetable oils, molasses, etc.), gray water, black water, diesel fuel, jet fuel, gasoline, chemicalsBladder tanks range in size from 5 to 20, 000 gallons and are the perfect answer to all your liquid storage, containment and transportation needs. All Husky bladder tanks are air pressure tested before shipping, are easy to handle, and fold down for compact, easy storage.