20x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack featured The OMRI listed beneficial nematodes

The OMRI listed beneficial nematodes can be used by both residential and commercial users

Fluorine Coated

24 packs per box

Sclerotinia Head and Leaf Drop*

The extra long handles can be used in one & as a pruner

20x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack featured The OMRI listed beneficial nematodesImportant 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