M-D Ultra Low Dome Top 72" L x 3-1/2" W x 5/8" H White Threshold

Low dome top threshold. Heavy-duty extruded aluminum smooth top threshold. Vinyl caulking feet seal bottom of threshold. Comes in 36" or 72" L. x 5/8" H. x 3-1/2" W. Finishes: Mill, bronze, white, and satin nickel.