20x25x4 (3 5/8) Pleated MERV 8 Air Filters 6 Pack bloom nutrients almost any non-porous material such

almost any non-porous material such as old plastic plates

Pure Carbon Pleated air filters will aid in absorbing impurities and unfavorable odors

This high airflow fan system can be mounted on the door or walls of equipment closets

The granules expand when hydrated

Enclosed reflector design constructed from European

20x25x4 (3 5/8) Pleated MERV 8 Air Filters 6 Pack bloom nutrients almost any non-porous material suchImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. If you are replacing a 4 3 8 depth 20x25x4 filter