20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 2 Pack Nutrients and Supplements This dual female

This dual female

Ergonomic Design– With rounded edges and a case that is only 17 mm (0

Power to the ionization unit should be interlocked with system fan operation

Available in White

CMH lamp technology is broad-spectrum based

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 2 Pack Nutrients and Supplements This dual femaleImportant 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,