Approx. 213 Sq. Ft. Allegheney Bradford Corp Horizontal Sanitary Stainless Shell & Tube Heat Exchanger. Shell rated 150 psi @ 350 ºF; Tubes rated 150 psi @ 350 ºF. (280) 5/16" diameter tubes; length approx 112". Serial # 11112-08. National Board #549. Built 1996.