Storage Tank, Fill Opening Diameter 8 in, Graduation Mark Increments 2 gal, Liquid Storage Capacity 25 gal, Overall Diameter 19 1/2 in, Overall Height 26 in, Standards NSF/ANSI/CAN 61 Certified, Tank Material LLDPE, Tank Material Thickness 1/4 in, Tank Opening Type Closed Top, Maximum Operating Temperature 140 Degrees F, Color Natural, Fill Cap Diameter 8 in, Maximum Liquid Temperature 140 Degrees F, Shape Round, Tank Orientation Vertical, Tank Wall Style Single Wall