Used 18,000 Gallon RD Cole horizontal carbon steel storage pressure tank. Rated 200 psi @ 300 deg F.. Built 1948. 9' diameter x 41' long. Welded dish heads. Unit is on loose saddles. Head thickness- 1/2"; Shell thickness- 1". Nozzle size: Top: 18" manway, (1) 6", (4) 2", (2) 3/4". Approximate weight- 64,500 lbs. ASME code stamped and tagged. NB# 73. Previous usage: Anhydrous Ammonia.