GermGuardian Genuine Carbon Filter Replacements for Use with FLT400 Filter E for AC400 Series Air Purifiers, 4-Pack FLT11CB4

Apparently, I read the description incorrectly as I actually thought I was getting at least one filter with it, not pre-filters. So what you’re going to get is a bunch of activated carving coated pre-filters which are basically a quarter inch deep and flexible but pleaded Box like filters. I really need to replace the box type filter and hopefully I will find one of those soon but at least for now I have a pile of carbon and filters