20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 14 Air Filters 2 Pack pumps-and-irrigation-supplies Save money and reduce waste

Save money and reduce waste

Not a fertilizer or nutrient substitute

humic acid and L-aminos to name a few

Made for routers (different style of motor)

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 14 Air Filters 2 Pack pumps-and-irrigation-supplies Save money and reduce wasteImportant 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,