The Koch Multi-Pleat MERV 11 furnace filter is a high performance disposable replacement air filter for all gas and oil furnaces, heat pump and AC air handlers that use a 24 x 24 x 0.5 air filter.
Diagonal and horizontal support members provide frame strength and the filter media pack is sealed to eliminate air bypass. The Koch Multi-Pleat filters are UL 900 Class 2 listed.
The Koch air filter media should be checked every month. Adjust the schedule to your needs, but at least replace the filter every three months.
For instructions on how to change your furnace's air filter, please refer to your unit's Owner’s Manual.
This package ships with 12 filters.