You have at least two choices, and maybe more.
One option is to get a FilterMax III (available from That Pet Place for less than $10). It has a plastic assembly over which the sponge slides; the whole thing attaches to the intake tube. It comes with adapters to fit various sizes of tubes, and would certainly fit a 2215 intake.
Another, less expensive option is to buy a Tetra PHAS sponge (also available online) for about 3 or 4 bucks. Then drill holes in the last 3" or so of the intake tube and slide the PHAS sponge over the now-perforated intake tube end.
I use both methods, and my current favor leans toward the DIY method with the PHAS. Although the FilterMax is bit easier initially to install (you don't have to drill any holes) the sponge is less dense than that of the PHAS and doesn't trap as much gunk. Also, my FilterMax broke - the plastic assembly that holds the sponge cracked and now the two pieces that snap together to hold the sponge in place don't hold. I've had to resort to semi-regularly temporary fixes, but the plastic that supports the sponge is developing more cracks. My FilterMax is only a couple of years old... I wonder if others who have them have experienced any cracking. Anyway, the PHAS sponges last pretty much forever and do a great job prefiltering.
There are certainly other black, cylindrical sponges that you could use for prefilters, but I've not got first hand experience with them.
Jim