20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 2 Pack bio-organic fertilizer This quiet duct fan system

This quiet duct fan system is popular in a variety of applications including cooling AV equipment rooms

Hardware pack (LRAALHDWARE) must be order separately

Insects can never become immune to this product because they can't get immune to suffocation or dehydration

greenhouse or outdoor growing

20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 2 Pack bio-organic fertilizer This quiet duct fan systemImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,