Unused 30" diameter Offenhauser Column, 304L stainless steel construction, 30" diameter first stage x 24" diameter second stage x 40'8" overall straight side, elliptical heads, rated 171 PSI and full vacuum @ 400 degrees F, sectional design with 30" diameter x 15'6" straight side bottom section, 24" diameter x 22'9" middle section, 24" diameter x 2'3" top section, 1'9" stainless steel skirt, 1163 gallon capacity, 1/4" top head, 5/16" bottom head, 5/16" bottom section, 1/4" top section, (2) 12" side manways, 10", (2) 8", (1) 6", (1) 2", (12) 1.5" process nozzles, Serial No. 98-9275A, National Board no. 815, new 1999.