20x20x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack refurbished-products • ISO 400

• ISO 400

it’s the final hydrating step

Because only female genetics is involved you will produce only feminized seeds

intraradices

20x20x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack refurbished-products • ISO 400Important 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