Mystery solved.

Go into the store. Ignore the price tag on the shelf. Open box and make sure that it is the fleece filter with Mann stamped on it.

Take it to the counter and ask for a price check.

It will come up at $11.49.

Buy both in the store. Normal inventory is 2. Don't say anything about the shelf price being different.

And, yes, it is not in their web site, or computer as being the correct filter, it just shows the crappy paper element filter.

Wait, and repeat.

I've done it twice.

Again, happy hunting.

Bruce