Get current pricing for Doyle & Roth, 20 Sq. Ft. 304-SS Sh 20 Sq. Ft. Horizontal 304-sss Shell & Tube Heat Exchanger. 304-ss Shell Rated 125 Psi/fv @ 375 Deg F. 304-ss Tubes Rated 125 Psi @ 375 Deg F. She . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: