Behlen Country PRE224 100-Gallon Poly Stock Round-End Tank Nominal size: 2ft by 2ft by 4ft, 100-gallon Heavy duty, molded-in aluminum drain fitting and 1-inch poly drain plug ensure a long-life. Fda food-grade approved poly, tested to -20 f,corrosion-free, impact resistant and recyclable. Premium UV Protection assures long life and resistance to color fade in outdoor use. All poly tanks have a three-year warranty.