Get current pricing for Oem, 3,851 Sq. Ft. Exell, Approx 3,851 Sq Ft Carbon Steel Vertical Shell And Tube Heat Exchanger. Cs Shell Rated 316 Psi @ 470 Deg F. Cs Tubes Rated 75 Psi @ 900 Deg F. Sh . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: