20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 15 Plus Carbon 1 Pack food-storage These fans maintain high CFM

These fans maintain high CFM ratings

1" (484 mm)

With a compact size

For spaces larger than 14' x 14'

It delivers more usable light energy for maximum plant performance and operates at cooler

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 15 Plus Carbon 1 Pack food-storage These fans maintain high CFMImportant 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,