Used 3,140 bare / 65,973 extended sq ft Fin Fan Heat Exchanger. Mfg GEA Rainey. (2) bundles #1 Bundle 1130 Sq ft (108) 1"OD x 40'L 316L Stainless Steel tubes rated 200PSI@300F Mfg Smithco built 2008. #2 Bundle 2010 Sq Ft (192) 1"OD x 40'L Carbon Steel tubes rated 2383PSI@350F. mfg GEA Rainey built 2005. 10'1"OAW x 41'4"OAL. Past use Compressor Lube Oil.