20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 4 Pack grow media It has an attractive design

It has an attractive design with comfortable feature and perfects for indoor and outdoor using

This thriving colony of Ulocladium oudemansii provides protection from pathogens to fruit

Max Conductivity: 20

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20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 4 Pack grow media It has an attractive designImportant 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,