20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 12 Pleated Plus Carbon 1 Pack 9 CFM and as the description indicates

and as the description indicates

Sunshine #4 Natural & Organic is recommended where high air capacity and fast drainage are needed: during winter months

Each silencer is built with a solid galvanized steel body that is corrosion-resistant and can withstand extreme temperature changes

Flowering Footprint 2'X2

20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 12 Pleated Plus Carbon 1 Pack 9 CFM and as the description indicatesImportant 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,