Get current pricing for Missouri Boiler & Tank, Missouri Boiler & Ta 3220 Sq Ft. Used Ss Heat Exchanger, Shell Rated 100 Psig @ 170 Deg F, Tubes Rated 550 Psig @ 170 Deg F, 1 / 1 Passes, U-tubes: (442) 0.75 Dia X 14 Bwg . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: