20x25x5 (4 3/8) Honeywell/Lennox Replacement Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 4 Pack Ventilation/Air Conditioning Black plastic holster measures 9

Black plastic holster measures 9 x 1 x 1

The pH value is certified traceable to NIST 185g S

• "Instant-on" capability—can be used with photocell or motion sensor

Constructed with quality materials

20x25x5 (4 3/8) Honeywell/Lennox Replacement Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 4 Pack Ventilation/Air Conditioning Black plastic holster measures 9Important 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,