Hmm, apparently Home Depot has issues with their links. If you go to the Home Depot website, search for "300345" you will find the item I was talking about.
As for Westlake's stock, they should have it replenished sometime early this week. If you need to know, I think giving them a call would be the best option.
BTW, how is that wire working out for you? Flexible enough, etc?