20x25x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack spl_jondon meaning it's super heavy duty

meaning it's super heavy duty without being super heavy

Several of these strains are multi-purpose or multi-functional and provide more than one benefit for plants and soils

This coir can be blended with other growing mediums

This controller has the capability to run a maximum of (4) 1000W ballasts using 120V power

For use on tomatoes

20x25x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack spl_jondon meaning it's super heavy dutyImportant 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