Doyle & Roth tube heat exchanger

"USED-DOYLE & ROTH SINGLE PASS SHELL AND TUBE HEAT EXCHANGER. 969 SQ FT. HORIZONTAL, 316 STAINLESS STEEL SHELL W/ EXPANSION RING RATED 50 PSI @ -20 TO 350 DEG.F..(247) 1-1/4" DIAMETER X 144" LONG 316L STAINLESS STEEL TUBES RATED FV/75 PSI @ -20 TO 350 DEG.F..316L STAINLESS STEEEL TUBESHEET, AND HEADS. OPENINGS SHELL, HEADS. SIDE LUG MOUNTS STOCK #’S 42484004 & 42484005