The Aprilaire 1413 Upgrade Kit enables owners of the Aprilaire 2400
air cleaners to upgrade their MERV 10 Aprilaire 401 filter to the more efficient MERV 13 Aprilaire 413 Filter.
The Aprilaire upgrade kit improves air cleaning performance by 65 percent and reduces almost twice
as many contaminants.
This Upgrade Kit features a snap-together frame and an inner housing to accomodate the new
Aprilaire 413 Filter and eliminates the need for pleat spacers