Need to replace the bottom flap and one screw

I'm afraid we don't have this exact shower door sweep. That said, we do carry the 10-324, 10-325, and 10-326, depending on what length you need. The only issue is, the screw holes probably won't match the same spacing as your current ones. You can drill new holes in the sweep to match those in your door, or you can install with double-stick tape. You can use the 33-071 screw to install it.