Used 3,500 gallon Patterson Reactor, 316 stainless steel contact, 20% clad shell, 8' diameter x 8'4" straight side, dished top and bottom, internal rated 14.9 PSI and full vacuum @ 600 degrees F, jacket rated 30 PSI @ 650 degrees F, 25 H.P. Falk 4-speed gear reducer agitator, 6 blade pitched turbine, 84/56/42/28 output RPM, 3/60/440 V explosion proof motor, (1) 18" top manway, misc. top nozzles, (2) 6" sight glasses, (1) 6" center bottom outlet, lug mounted, Serial Nos. 681 and 683, National Board Nos. 671 and 673.