M-D door threshold, m-d, 3-3/8 in width, 36 in length, 3/4 in height, aluminum, Silver, resists: moisture, rot, termite, with vinyl seal, for all season protection against drafts, moisture, dust and insects. Xx and xxh series. Economy grade extruded aluminum with screw holes under flip in type vinyl insert. 3 3/8'' W. X 36'' L. Packed with screws.
Low threshold made of extruded aluminum with vinyl seal; vinyl caulking strips under legs.