I put my new cabin air filter in today. I ended up with FIL4767 from NAPA. Here is what the description reads:

<< Carbon Impregnated Cabin Air - Remove Ordors + Particulate Contamination >>

The filter material appears to be the exact same as the MB filter I took out. The housing isn't made as stout as the MB, but I don't see a problem with it. Although the old filter wasn't as bad as I thought it would be, I did get a bunch of larger debris falling out when removing the tray.

James