Used 600 liter (159 gallon) Precision reactor, 316L stainless steel construction, approximately 38" diameter x 37" straight side, dish removable lid and bottom, rated 45 psi and full vacuum at 392 F internal, 304L stainless steel jacket rated 160 psi and full vacuum at 392 F, 4" sight glass with (1) 4", (3) 3", and (2) 1.5" top nozzles, top mounted Lightnin agitator, 2" center bottom outlet, side lugs, serial# 135-32, national board# 6283, built 1996.