We have replaced all our windows(with Marvin and are very satisfied), and our exterior doors and built new interior doors. We like the Frost King Nail-on Reinforced rubber gasket weatherstrip, which we started using years ago and it holds up well. Frost King no longer makes this product and offers nothing similar. I found one bag of this product on ebay but can find it nowhere else. Someone must have a few bags hidden in a warehouse but I have no idea where to look from here. Any suggestions?