Used Horizontal Carbon Steel (SA-516-70) Approx 2,750 Gallon Tank. Rated 297 PSI @ 110 deg F. 6' Dia X 12' Straight Side. (16.5' OAH). Dished Heads. Thickness: Sell - 3/8"; Heads - 3/4". Built by Cryo Chem, 1981. S/N: 1491, NB# 1491. Mounted on Saddles. Weight: 3,000 lbs.