500 gallon vertical 316L stainless steel storage tank. Built 1989 by Hebler Welding. Dished top, dished bottom. Overall dimension: 41ö O.D. x 9Æ0ö length . Wall thickness 3/8ö. Rated 15 psi @ 200 Deg. F. Outlets: Bottom drain: (1) 3ö; Vent: (1) 3ö; Level: (1) 3ö. Previous Use: Potassium Hydroxide Storage. Weight of tank empty: 1,346 lbs.