20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 15 Plus Carbon 1 Pack food-storage Also excellent for use in

Also excellent for use in water cooling applications

Also known as Horizontal Air Flow (HAF) fans

These fans maintain high CFM ratings

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

reducing fly populations across large areas

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 15 Plus Carbon 1 Pack food-storage Also excellent for use inImportant 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,