Used 2520 SQ FT Praj Industries vertical 304 Stainless Steel shell & tube heat exchanger. 43.5" ID x 18'9" overall length (978) 1" x 9'10" tubes, shell 25psi@239F, tube 10psiFV@212F, single pass both sides. National Board #21. Serial #06D058-H1464. Built 2008. Last use Side Stripper Reboilers - DE Vapor Heated.