Used 650 gallon Roben Reactor 304 stainless steel construction, 54" diameter x 62" straight side, dish top and bottom, rated 25 psi and full vacuum at 212 F internal, (3) banks of 2" internal coils rated 200 PSI at 212 F, jacketed on bottom and straight side for 60 PSI at 212 F, top entering Chemineer agitator drive with mechanical seal, stainless steel shaft with 4 blade pitched turbin blade, 16" manway, 2" center bottom outlet, side lug mounted, serial# 81020-1, national board# 4944.