U-Shaped Door Bottom / Sweep, Scew-On Wrap-Around
Adjustable
White Vinyl
Width: Fits 1-3/4 inch thick door
Length: 35-3/4 inches long
Height: 1-1/2 inches (height will adjust 1/2 inch)
Fins: 1/2 inch
Seals 1/4 to 1 inch gap
U-shaped door sweeps sold each

Resources:
Video: How to Replace L-Shaped and Wraparound Door Bottoms
Guide to Replacing Door Sweeps/Bottoms
Video: How to Replace Door Sweeps