20x25x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack lighting Directions for Use: Mix with

Directions for Use: Mix with water or Nature’s Solution Compost Tea

The butterfly damper blades are made of aluminum and are equipped with a light spring that folds with minimal airflow

700m3h @ 0

it helps manage airflow for lighter buds compared to heavier

20x25x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack lighting Directions for Use: Mix withImportant 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 20x25x4 filter