I know I run the risk of posting a "shopping" question, but I don't know of any other place to go for this.
I am looking to create a custom door gasket to do around a new soundproof door I made. I find strips like what you see below when I search for things like "neoprene door gasket" and "round neoprene" and what have you, but I only seem to be able to locate these items on overseas websites like China and the UK. Are neoprene rubber door seals not popular in the US or does they carry a different name? I'd love to be able to run down to my local Menard's, Home Depot, or Lowe's and pick up some of this stuff, but it seems like it simply doesn't exist here.
What are some terms I could search for to locate these door seal strips in the US?
I especially like the first P-shaped one: