20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 15 Air Filters 1 Pack 9 CFM Highly effective for medicinal plants

Highly effective for medicinal plants

Each duct collar is made of galvanized steel that can weather extreme temperatures and is finished with a corrosion-resistant zinc coating

Industrial process control

• Not for use with pinking shears or scissors with serrated blades

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 15 Air Filters 1 Pack 9 CFM Highly effective for medicinal plantsImportant 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,