Unused 800 sq ft Ambassador Heat Transfer heat exchanger, 316L stainless steel tubes, and tube sheets with (170).75" diameter x 288" long tubes rated 200 psi and full vacuum at 400 f, 3204L stainless steel bonnets, carbon steel shell rated 165 psi at 400 f, serial# 06-1071-3, national board# 807, built 2007.
