20x25x5 (4 3/8) Honeywell/Lennox Replacement Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack Aeromixer Grow Stage MICROBES are a

Grow Stage MICROBES are a specific group of beneficial bacteria and fungi formulated specially for the Grow (vegetative) stage of plants

Accessories sold separately

Contains no genetically modified organisms (GMO)

- Double cushion for

The KDF-85 media is specifically engineered to target chloramine and heavy metals — contaminants that standard carbon filters often miss

20x25x5 (4 3/8) Honeywell/Lennox Replacement Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack Aeromixer Grow Stage MICROBES are aImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,