16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 1 Pack Synthetic Pro Edition No Returns on pandemic/health items

No Returns on pandemic/health items

and a reliable alternative to other methods that have disappointing results

100% naturally occurring bat guano

RF (CHC223108W)

Has no maximum number of spray applications per season

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 1 Pack Synthetic Pro Edition No Returns on pandemic/health itemsImportant 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,