Used Nooter Corporation approximately 975 square foot (6-pass) Type Gr. 2 TI. shell and tube heat exchanger. 25" diameter X 12' face to face length. National Board# 11447, S/N 05838. 304 Stainless Steel Shell rated 250/FV @ 392 degrees F. (414) 3/4" Gr. 2 TI. tubes rated 250/FV @ 392 degrees F. Has 4” process nozzles and 6” and 3” service inlets. The unit appears to have some Non-code repairs to the shell, (it has been hydro-test to 375 PSI and held for 1.5 hours). Weight 5050#.