Used approximately 300 gallon stainless steel reactor. Internal rated 55 psi @ 250 degrees F. Jacket rated 150 psi @ 325 degrees F. T316L stainless steel contacts. Off center Lightning drive with prop agitator. 1 hp 3 phase 60 cycle 208-220/440 volt motor. Vessel approximately 48" diameter X 40" deep straight side. Dished heads. Built 1980. Expert Industries. National board number 291. Serial number 4257.