20x20x4 (3 5/8) Pleated MERV 13 Air Filters 1 Pack Power & Lamp Cords Use it carefully as a

Use it carefully as a spot treatment around garden edges

purple stem

Features dual aluminum flanges to help absorb sound waves from fan vibrations and airflow

Cost Effective: Extra-concentrated formula allows a little product to go a long way

and effective than any nutrient ever created

20x20x4 (3 5/8) Pleated MERV 13 Air Filters 1 Pack Power & Lamp Cords Use it carefully as aImportant 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 20x20x4 filter