20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 10 Pleated Plus Carbon 2 Pack odor-control then the reading will be

then the reading will be inaccurate

Enjoy up to 60 days of fragrant air with each set of two AA batteries

precise cut

Humidome™ can be purchased separately

favored by thousands of horticulturists from weekend gardeners to professional flower trimmers—with the added enhancement of titanium-coated blades

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 10 Pleated Plus Carbon 2 Pack odor-control then the reading will beImportant 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,