MultiTherm can duplicate any existing Bundle to include dimensions, materials, and performance. We can build "U" tube bundles, straight tube "floating" tubesheet bundles, or we can retube fixed tubesheet heat exchangers when the bundle is not removable. MultiTherm is not locked into any one material. Most bundles tend to be built with copper tubes and steel tubesheets. MultiTherm can offer a wide variety of materials, including: carbon steel, stainless steel, cupro-nickle, admiralty brass, and many others. We also offer our special expedited shipment schedules for emergency replacement. MultiTherm can ship any copper or cupro-nickle bundle in one week or less.