Unused 200 liter (Approx. 50 gallons) Working Volume Lee Industries Stainless Steel Bioreactor Vessel. 316-SS Internal rated 50 PSI @350 deg F. 304-SS Dimple Jacket rated 100 PSI @ 350 Deg F. Interior 12-15Ra, mirror; Exterior ground & polished; 4-baffles; Centered mixer port. Various top nozzles: 1.5" CBO. Built 2004, S/N: 34638-2-4, NB# 9863. (Vessel only - No Agitator)