Used 20 Square Feet Horizontal 304-Stainless Steel Shell & Tube Heat Exchanger. 304-SS Shell rated 125 PSI/FV @ 375 deg F. 304-SS Tubes rated 125 PSI @ 375 deg F. Shell dia : 6.625" x 47.875" L (OAL-75.25"). (31) tubes, .625" dia x 48" L. Nozzles: Shell - (2) 2"; Tubes - (2) 4". 1 Pass Shell; 1 pass Tube. Type BEM. Mfg by Doyle & Roth, 2005, S/N: S-1503-5, NB# 20146. Previous use: Flash Condenser. Weight: 345 lbs. U-1 & Drawing on file.