USED WHE BIO SYSTEM APPROXIMATELY 130 GALLON (500 LITER) VERTICAL STAINLESS STEEL PROCESS VESSEL. 30" DIAMETER X 42" STRAIGHT SIDE. WITH DISHED TOP AND BOTTOM HEADS. RATED 45 PSI/FULL VACUUM INTERNAL @ 300°F, JACKET RATED 100 PSI @ 300°F. 18" CLAMP HINGED TOP MANWAY, (3) 1.75", 2", AND 2.5" TOP INLETS, AND 2.5" BOTTOM OUTLET. ON CASTORS.