Storage Tank, Drain Connection Gender Not Applicable, Drain Connection Type Not Applicable, Drain Opening Diameter Not Applicable, Fill Opening Diameter 10 in, Frame Material Not Applicable, Graduation Mark Increments 10 gal, Liquid Storage Capacity 100 gal, Overall Depth 30 in, Overall Diameter 30 in, Overall Height 31 in, Overall Width 38 in, Standards Compliant 177.1520, NSF/ANSI 61, Tank Material HDPE, Tank Material Thickness 1/4 in, Tank Opening Type Closed Top