This Atlas E-311 Shell & Tube Heat Exchanger is in used condition and is guaranteed to be fully functional. This item came from a local MFG that recently closed down and was in use prior to removal. We urge customers to view all photos as they show overall condition, included accessories and useful information. Please feel free to contact us with any questions. NAT'L BD #: 5753 1-1/2" Tri-Clamp Fitting |