Filter Bundle Kit: Includes 1 Replacement Hepa Air Filter And 1 Carbon Prefilter Wrap. | | High Quality Replacement Parts: Replaces Genuine Part No. 5404011300 And 4404009100. Fits Filter Queen Models: Defender 4000, Rac4000, Am4000, Defender 360. | | Breathe In Fresh Air: Hepa Filter Is Effective At Removing Particles As Small As 0.3 Microns From The Air That Passes Through The Filter. Activated Carbon Absorbs And Eliminates Odors For Clean And Fresh Air. | | Easy To Install: Wrap Around The Filter Cartridge With The Carbon Pre-Filter Using 2 Velcro Tabs. And Simply Remove Old Filter And Replace With 'S High Quality Air Filter. Approximate Filter Dimension: 7.5" Inside Diameter X 11.25" Outside Diameter X 8" H | | Money Saving: Replace The Old, Clogged Dirty Air Filter And Save Electricity By Running Filter Queen Air Purifier At Optimal Performance. | |