168 SQUARE FOOT TRIPLE TUBE HEAT EXCHANGER #HX 1518

168 SQUARE FOOT TRIPLE TUBE HEAT EXCHANGER, 6 INTERCONNECTED TRIPLE TUBES 28 SQ. FT. EACH, 2.25" INNER TUBE, 3.5" MIDDLE TUBE, 4.25" OUTER SPIRALLED TUBE, 18' 8" LONG