Storage Tank Fill Opening Diameter 16 in Graduation Mark Increments 30 gal Liquid Storage Capacity 300 gal Overall Diameter 48 in Overall Height 50 in Standards NSF/ANSI/CAN 61 Certified Tank Material LLDPE Tank Material Thickness 3/8 in Tank Opening Type Closed Top Maximum Operating Temperature 140 Degrees F Color Natural Fill Cap Diameter 16 in Maximum Liquid Temperature 140 Degrees F Shape Round Tank Orientation Vertical Tank Wall Style Single Wall