20x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 2 Pack Flushing Solution What's the key to ensuring

What's the key to ensuring fungal and bacterial pathogens don't wipe out your plants and flowers

Try the Outdoor Pack

Weight: 1 lb

Open design allows for viewing birds from most angles

Sluggo contains iron phosphate

20x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 2 Pack Flushing Solution What's the key to ensuringImportant 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