20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 13 Air Filters 4 Pack Lamps Hoods are designed with tunnelized

Hoods are designed with tunnelized elastic to offer a more secure closure

the lasting control that RootShield provides will reduce or eliminate chemical fungicide usage

Replace if soiled or spores are present on the filter after harvest

It takes physical effort to do a quality cleaning job that meets the QA department’s standards and requirements

NEW IMPROVED MODEL - MORE DURABILITY AND STRENGTH

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 13 Air Filters 4 Pack Lamps Hoods are designed with tunnelizedImportant 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,