Eliason Fiber-Flex 225 extruded aluminum framing with a slip in design to be set into an existing frame. The Eliason 225 Insert Cap Frame is a heavy duty aluminum extrusion that provides excellent strength. The slip-in design covers old, new, or damaged framing, while giving a new and modern appearance to any frame opening. It has perimeter wool pile weatherstripping. The frame face can be trimmed if needed, to fit various conditions. It is designed for 1 3/4″ door thickness. This model has a 2 1/4″ face flange to help cover the face of the existing frame material.