Used Yula 2 Pass Shell & Tube Heat Exchanger, Approximately 238 Square Feet, Model WC-2F-240CS, 304L Stainless Steel, Horizontal. 304L Stainless steel shell rated 150 psi at 40 to 375 degrees F. (76) 1” diameter x 240” long 304l stainless steel tubes rated 100 psi at 40 to 350 degrees F. 304L Stainless steel tubesheet and heads. Openings for tubes (2) 6", openings for shell 6", 3". National Board# 12656, serial# 20274, built 2007.