16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack microbes Its high porosity makes it

Its high porosity makes it a good aggregate in potting and germination mixes

young plants or favorite microgreens

stable power for high intensity & quality spectrum

1 pints/kWh)

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack microbes Its high porosity makes itImportant 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,