Frost King 3-3/4 in. x 72 in. Wide Aluminum Silver Threshold

The heavy-duty 3-3/4 in. x 6 ft. Deluxe Threshold for Double-Entry Doors holds up to heavy traffic. The vinyl feet provide extra tight sealing against the sill. The extra length makes this threshold ideal for using on wider doors or even double doors. It helps keep the cold air out of the house in the winter and the cold air in during the summer heat.