20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 4 Pack fluorescent-lighting Built to last

Built to last

Works great around my chickens and dogs without any worry

per fan | Total Airflow: 104 CFM | Total Noise: 19 dBA | Bearings: Dual Ball

Features platinum TDS/EC sensor and thermister

Mount with ground post for feeding squirrels

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 4 Pack fluorescent-lighting Built to lastImportant 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,