20x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack pumps-&-irrigation and organic hydroponic media to

and organic hydroponic media to promote healthy soils and growing media which in turn helps to produce lush plant growth and expansive root systems

Protect your valuable plants and get "Big Time" results without spending big dollars

Why use Duramax 200

The 14" Saucers fit under our 1

FC2022 provides extremely fast and accurate pH readings due to its special electrode design

20x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack pumps-&-irrigation and organic hydroponic media toImportant 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