4000 gallon Pfaudler Glass Lined Reactor, rated100 PSI and full vacuum at 650 degrees F internal, jacketed for 90 PSI at 450 degrees F, 3 blade retreat curve agitator with 30 H.P. PTE10 Philadelphia Drive, 230/460 volt variablespeed, XP, mechanical seal with lubricator, baffle, 3009 glass steel, (4) 4", (2) 6", (2) 8" top nozzles, 4" bottom outlet, Serial No. R180-0212, National Board No. 40372, Unit reglassed by DeDietrich in 1997.