16x20x4 (3 5/8) Pleated MERV 14 Air Filters 6 Pack Monterey Lawn & Garden Products Automated programming that self-adjusts cooling

Automated programming that self-adjusts cooling power in response to changing temperatures

Commercial/Residential Odor Control – Reduces odor caused by mold

This is the real deal for large-scale operations

Used during the flowering phase of plant growth with any base fertilizer

16x20x4 (3 5/8) Pleated MERV 14 Air Filters 6 Pack Monterey Lawn & Garden Products Automated programming that self-adjusts coolingImportant 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. If you are replacing a 4 3 8 depth 16x20x4 filter