Get current pricing for Houston Heat Exchangers, Houston Heat Exchang 2538 Sq Ft. Used Ss Heat Exchanger, Shell Rated 50 Psig @ 350 Deg F, Tubes Rated 75 Psig @ 300 Deg F, 1 / 1 Passes, Tubes: (825) 0.75 Dia X 16', . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: