OPGI outsources many of the things they sell and they're sold at a premium with pretty high shipping prices to boot. You'd be better off looking at Rubber the Right Way (https://www.rubbertherightway.com/), or Steele Rubber (https://www.steelerubber.com/) for it. Don't cheap out and buy the weather stripping on eBay. I tried it, and it was junk.
Rubbertherightway.com or steelerubber.com I would leave opgi as the last resort, due to their prices and sales practices.
They are also available on eBay for around a third of that price. I do not know anything about the quality but worth looking into at least.
Nevermind. I see now the first reply included a warning about the eBay stuff.
I would like to know the company that makes the best rubber trim products that have held up for a good amount of time In use