20x20x4 (3 5/8) Pleated MERV 12 Air Filters 6 Pack -power-&-lamp-cords Triple-washed coir

Triple-washed coir

• Top dressing throughout growing season

making application and cleanup a breeze

Seaweeds have long been recognized as stress reducing agents and powerful plant boosters

Engineered for installation directly into air handling units and duct systems

20x20x4 (3 5/8) Pleated MERV 12 Air Filters 6 Pack -power-&-lamp-cords Triple-washed coirImportant 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