20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 4 Pack LED Lighting and general purpose electrical circuits

and general purpose electrical circuits

For proper set up

Far-Red radiation can indirectly increase growth

Leaf Green is recommended for plants that have difficulties during their initial development

Ailing plants as a vitality booster

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 4 Pack LED Lighting and general purpose electrical circuitsImportant 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,