20x20x4 (3 5/8) Pleated MERV 8 Air Filters 1 Pack Travel Bags & Backpacks Nordic Pure 14x24x1 MERV 12

Nordic Pure 14x24x1 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

and operate for only pennies a day

The generous 18" length helps cover more of your arms to decrease the risk of exposing skin or underlying clothing to workplace contaminants

soak them for 15 to 30 minutes in a Dr

500K Lamps 5

20x20x4 (3 5/8) Pleated MERV 8 Air Filters 1 Pack Travel Bags & Backpacks Nordic Pure 14x24x1 MERV 12Important 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