Used 208 sq ft 316 Stainless Steel shell and tube heat exchanger. Manufactured by Rubicon Industries. Model #VT1231-120H. 12 3/4" OD x 149" OAL. 304 SS Shell rated 150 psi @400 F. (110) 3/4 " OD 316SS Tubes rated 150 psi @400F. National Board #2985, serial #4234. Weight. 2100 lbs. Built 2016.