Unused 396 Sq Ft Tanatlum Shell and Tube Heat Exchanger. Mfg Astro Cosmos. (132) .75"OD x 14'L Tantalum Tubes rated 76 PSI@338F. Tantalum-lined Carbon Steel shell rated 126PSI@356F. Dimensions 1'4"OD x 16'8"OAL. Expansion Joint. CE Marking #0954. Serial #66431. Built 1998