Triple tested with dry pneumatic air, and steel shot blasted prior to painting. Powder Coat Paint for maximum rust protection, and HANDLE-EZ collar design - the only collar with a built-in, formed handle with no sharp edges. Include warning decals that are easy to read for your protection. Overall length: 29.43 in. Tank height: 25.56 Tank Diameter: 12.16 Base Diameter: 7.93.