HEAT EXCHANGER, SHELL & TUBE, 200 SQ. FT., S/ST, 114 TUBES 5/8" OD X 16 GUAGE X 11' LG, UNIT IS 6 PASS ON THE TUBE SIDE, U-TUBE CONSTRUCTION WITH CARBON STEEL SHELL. UNIT RATED AT 75 PSI TUBE AND SHELL SIDE ATY 150 DEGREES F. REMOVABLE HEAD CAN BE MODIFIED FOR 2 PASS BY REMOVING BAFFLES IN HEAD. STAINLESS TUBE BUNDLE IS REMOVABLE FOR CLEANING. SHELL SIDE HAS 3" FLANGED IN AND OUT, TUBE SIDE HAS 2" FLANGED IN AND OUT.