134 sq. ft. horizontal Monel 400 tubes, tube sheet, heads, steel shell heat exchanger. Manufactured by Doyle & Roth, SR # J-2660. ASME code stamped for 150 PSIG @ 400 degrees F on shell side, 150 PSIG @ 400 degrees F on tube side. NB# 10568. Shell 10" diameter x 7'7" long. Overall exchanger' length 10'. Single pass design. With (85) ?"OD x 16 BWG x 7'7" long monel 400 tubes on 15/16" triangular pitch. Openings: Head 1-3", head 1-2",1-3"; shell 2-2" at 180 degrees opposite sides, 1-3/4".