Get current pricing for Robert Mitchel, 200 Gal Robert Mitch 200 Gallon Robert Mitchell Hastelloy C276 Reactor. Rated 100 Psi Internal @ 450 Deg. F. 304l Stainless Steel Jacket Rated 150 Psi @ 450 Deg. F. 5 . Product Category: Process Equipment, Sub Category: Process Reactors: