20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 8 Pleated Plus Carbon 4 Pack ventilation and ducting butyl and plastic surfaces such

butyl and plastic surfaces such as plant containers and hydroponic systems of organic debris and mineral deposits

pH and EC stable

DIAMOND REFLECTION TECHNOLOGY

and Eliminators

Made with food grade cottonseed and corn oils

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 8 Pleated Plus Carbon 4 Pack ventilation and ducting butyl and plastic surfaces suchImportant 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,