Nordic Pure 16x25x4 (15_1/2 x 24_1/2 x 3_5/8) Furnace Air Filters MERV 10 Pleated + Carbon 1 Pack

Important Note: Almost ALL furnace filters have a different \"actual size\"" than the nominal size printed on the air filter. It's best if you measure your air filter for the EXACT size and compare it to our \""Actual Size\"". With the 4\"" and 5\"" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. If you are replacing a 4 3/8 depth 16x25x4 filter in your Honeywell unit you should order our 16x25x5 Honeywell Replacement air filter that measures 15 3/4 x 24 3/4 x 4 3/8 (15.75x24.75x4.38).