968 Sq Ft Graphite Carborundum Vertical Shell & Tube Heat Exchanger. Shell rated 75 psi at 340. Tubes rated 50 psi at 340. Tube diameter 1.25". Tube length 12'0". Tube holes 230. Shell nozzles (2) 6". Tube nozzles (2) 6". Shell diameter 2'4". OAL 14'10". Overhead condenser MFG by Carborundum.