20x20x4 (3 5/8) Pleated MERV 15 Air Filters 2 Pack Chemicals which is FDA-approved and BPA-free

which is FDA-approved and BPA-free

Fabric passes ASTM F1670 and F1671 tests for protection against blood

Great for at work or to show off plants at home

and light sensor

20x20x4 (3 5/8) Pleated MERV 15 Air Filters 2 Pack Chemicals which is FDA-approved and BPA-freeImportant 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 20x20x4 filter