M-D 87668 Garage Door Weatherstrip, 1-5/8 in W, 2-3/4 in Thick, 18 ft L, Aluminum, Black

Low temperature seal closes gaps up to 3/4 in at bottom of garage door to seal out air, moisture and dust. Stays flexible to -30 deg F. Seal insert is held in place with a sturdy aluminum extrusion fastened to bottom of door with screws (included).