Pallet Pak units are designed for light-duty transport (non DOT approved) for indoor or outdoor applications. Other applications include: hauling/ storage of fresh potable drinking water, grey water storage, soaps/ detergents, automotive fluids, used bulk oil storage, liquid compatible chemicals, liquid fertilizers, herbicides and pesticides. All tank bases are constructed of either powder-coated metal or Polyethylene and have 4-way entry. Pallet Pak Tank sizes available in 110, 210, 150 and 300 gallons. Tanks are manufactured from medium-density Food Grade Polyethylene with U.V. inhibitors and are designed for containment of liquids up to 1.7 specific gravity. Tank walls are translucent for level viewing and equipped with gallon indicators.