Croll Reynolds Co. Shell and Tube Heat Exchanger. Model: SU6. Approximate heat transfer surface area: 19 sq. ft. (10) 5/8 in. dia. x 5 ft. 9-5/8 in. L stainless steel tubes. Inlets: (1) 2 in. S-line (product), (1) 2-3/8 in. dia. flange with (4) ¾ in. mounting holes, 3-3/8 in. adjacent, 4-3/4 in. opposite (media). Outlets: (1) 3/4 in. dia. MNPT port (pressure relief), (1) 1 in. dia. FNPT (product), (1) 2 in. MNPT port (media). Overall dimensions: 6 ft. 6 in. L x 11 in. W x 1 ft. 6 in. H.(ACN90).