43337 M-D U-Shape Under Door Seal, 36 in L X 2-1/4 in W X 1-1/2 in H, 1-3/4 in Thick, Vinyl New Version

Compression Fit Holds Firmly In Place
No Screws Needed, Does Not Damage Door
Seals Gaps Up To 3/4 In. Between The Bottom Of The Door And The Threshold
Brand Name: M-D Building Products