20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 14 Air Filters 1 Pack tents-/-indoor-greenhouses Fungus Gnats

Fungus Gnats

Especially the addition of potassium in the nutrient program

the Mini is nothing but a powerhouse and is perfectly suited for small to medium size operations looking to streamline their process

and hydroponics DYNOMYCO® improves plant nutrient and water uptake

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 14 Air Filters 1 Pack tents-/-indoor-greenhouses Fungus GnatsImportant 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,