8', 625 gallon, round, poly stock tank, tank has extra heavy duty molded rim & an extra deep sidewall rib design for additional strength, molded in aluminum drain fitting & a 1-1/4" poly drain plug ensures a longer life than ever before, fda food grade approved poly that has tested to -20 degree f, uv protected, comes with a 3 year warranty, Tank Size Is Nominal & Will Be Slightly Less Than Stated Size.