Get current pricing for Energy Exchanger, 537 Sq. Ft. SS Shell Horizontal 537 Sq Ft Shell & Tube Heat Exchanger. Sa-53b Shell Rated 125 Psi @ 160 Deg F. 304l-ss Tubes Rated 95 @ 321 Deg F. 304l-ss Heads. 16 . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: