Unused Steeltek Single Pass Shell & Tube Heat Exchanger, 1,225 Square Feet, Type BEM, Size 19-240, Horizontal. 304L Stainless steel shell rated 324 psi/Full Vacuum at -50 to 300 degrees F. (319) 3/4" Diameter x 20 long 304L stainless steel tubes rated 262 psi/Full Vacuum at -50 to 300 degrees F. 304L Stainless steel tubesheet, expansion joint and heads. Openings shell: (2) 6", tubes: (2) 6". Saddle mounted. National Board# 1967, serial# 08S-2404, built 2009.