Reglassed and Unused 23" ID x 10' long Glass Lined Dedietrich column (4340001827). Type 3008 Glass. Rated 75 psi / FV @ 300 F. Built 1987. National Board # 4257; Serial # 33601. With 18" head new in 2005 (4340001823) and 4' head new in 2005 (4340001801).