Get current pricing for Oem, OEM-37180-ID Used Approx. 1000 Sq.ft. Shell And Tube Heat Exchanger. T304l Stain Less Steel Heads And Tubesheets. Rated 75 Psi @ 250 Deg. F. Shell Is 16 Dia. X 34' . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: