no, and its TINY probably not big enough.
What you're looking for will be over by the aqua-clear filters at petco. In a box lined up with all sorts of other junk for aquaclears.
(Really, does ANYBODY use zeolite carbon mix bags anymore?!?)
An alternative to using a rubber band you can get a small roll of endless twist-tie or sometimes you can get some for free from packing stores like UPS store. Run this through a long section of air-line hose and use it to secure the foam on the front by twisting it in the back. Rubber band looks like worm to me, I assume someplace there's a betta strung-out.