Get current pricing for Graham, 2,100 Sq. Ft. Graham Approx 2100 Sq Ft Horizontal Ss Shell & Tube Heat Exchanger. 316-ss Shell Rated 20 Psi/fv @ 250 Deg F. 316-ss Tubes Rated 75 Psi @ 250 Deg F. Cs . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: