Ok, I never had the Tuniq Tower so I cant really say what you are talking about but you can try these, is that thing that you need double-sided tape? if so you can get it maybe at any computer store or office store.
If what you are talking about is something else, then you can try to look for it in the Sunbeam site (or Tuniq site) whichever the site for the cooler is. I would like to ask Tacos if that thing is really necessary...