| This is a collapsible Media Replacement Filter by Honeywell. There is no assembly required. No combs, pleat spacers or end caps. Filters literally pop-up into finished form, ready-to-use. It is highly efficient, rated at MERV 11 efficiency.
Its collapsible design allows for easier shipping and less damage to filter. You can store up to five filters in the same space you used to store just one. Its unique design offers an additional 1" of filtration depth compared to standard cartridge replacement filters. It meets the American Lung Association Health House guidelines.
POPUP2400 will fit in Aprilaire/Space Gard air cleaner model 2400.
It can be used in place of Aprilaire/Space Gard filter #401. | 
