Storage Tank Drain Connection Gender Female Drain Connection Type TxT Drain Opening Diameter 1 in Fill Opening Diameter 6 in Frame Material Not Applicable Graduation Mark Increments 5 gal Liquid Storage Capacity 30 gal Overall Depth 20 in Overall Diameter 23 in Overall Height 26 in Overall Width 19 1/2 in Standards FDA Compliant 177.1520 NSF/ANSI 61 Tank Material HDPE Tank Material Thickness 1/4 in Tank Opening Type Closed Top Maximum Operating Temperature 130 Degrees F