10 gal. Round Fiberglass Tank with 45º Sloping Cone Bottom, 15" cylindrical wall, 1.5" flange, and 1" fpt center drain. Includes interior and exterior FDA approvable gel coat. Dimensions: •  Inside Diameter: 12" •  Outside Diameter: 16" •  Depth: 20.5" •  Thick: 3/16"