Get current pricing for Api Ketema, 75 Sq. Ft. 316 SS He 75 Sq.ft. 316 Stainless Steel Api Inc Basco, Shell And Tube Heat Exchanger. Steel Shell Rated 150 Psi @ 450f. 316 Ss Tubes Rated 150 Psi @ 450f (u Tub . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: