16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 4 Pack harvest-solution 000 uses with proper care

000 uses with proper care and maintenance

Simply dilute with water

these cultures promote the growth of naturally-occurring beneficial microorganisms

but it can take a serious toll on your grow tent

16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 4 Pack harvest-solution 000 uses with proper careImportant 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,