Used Distillation Column 20" dia. x 20'7" T/T. 316 Stainless Steel. Rated 75/Full Vacuum @ 350 Deg.F. Bottom section is 4'6" T/T; Middle 12'11" T/T; top 3'2" T/T. Unit had SS pall rings for packing (not Available). Built by Alloy Fab. S/N: 8-110. NB # 1507.