Storage Tank, Drain Connection Gender Not Applicable, Drain Connection Type Not Applicable, Drain Opening Diameter Not Applicable, Fill Opening Diameter 6 in, Frame Material Not Applicable, Graduation Mark Increments 10 gal, Liquid Storage Capacity 50 gal, Overall Depth 19 1/2 in, Overall Diameter 20 in, Overall Height 22 in, Overall Width 38 in, Standards FDA Compliant 177.1520, NSF/ANSI 61, Tank Material HDPE, Tank Material Thickness 1/4 in, Tank Opening Type Closed Top