Used 2165 Sq. Ft. 304L Stainless Steel Shell & Tube Heat Exchanger. Mfg Shell & Tube Bundles Inc. Shell Rated 464PSIG @ 150F. Tube Rated 1267PSIG @ 150F. Shell Dims: 2'6"OD x 25'10"OAL. National Board #175. Serial #STB-1334-1. Built 1998. Previous Use Demethanizer Side Reboiler.