Get current pricing for Modern Welding, 1,000 Gal Modern Wel 1000 Gal Modern Welding Vertical Stainless Steel Reactor. 60 Id X 7', Shell Side. Shell Rated 50 Psig/vac @ 302 Deg F, Ss 1/2 Pipe Coil Jack . Product Category: Process Equipment, Sub Category: Process Reactors: