4000 gal vertical Roberts & Co. T-316L S/S vacuum tank. 8' diameter x 10' high straight side 1/4" thick. Deep dished welded top and bottom heads 3/8" thick. Internal rated 57/FV @ 350F. Insulated and covered with aluminum sheathing. Mounted on (4) legs. External ladder with cage. Fittings (1) 3/4", (3) 1 1/2", (3) 2", (1) 6" and (1) 20" manway. Built 1994. Previous used pharmaceutical service.