16x20x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack Water Heaters Chillers The unit's low-profile design is

The unit's low-profile design is ideal where mounting space is limited or a smaller footprint is desired

Less light deterioration

• Restores a sharp edge in just a few passes and lasts for years

while secure elastic wrists and ankles work together to keep sleeves and pant legs in place to prevent skin exposure

16x20x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack Water Heaters Chillers The unit's low-profile design isImportant 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. If you are replacing a 4 3 8 depth 16x20x4 filter