20x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 2 Pack commercial-lighting-fixtures Nordic Pure 14x20x1 MERV 8

Nordic Pure 14x20x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

250 mummies (SKU 1001001) is sufficient for 5000-25

For Preventative Maintenance – Dilute 1/2 oz

Sleeves are designed with tunnelized elastic to offer a more secure closure

CROP RECOMMENDATION

20x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 2 Pack commercial-lighting-fixtures Nordic Pure 14x20x1 MERV 8Important 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