16x20x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 1 Pack Fertilizer Displays time remaining on cycle

Displays time remaining on cycle

gardeners simply remove the lid from the jar or pail to expose it to the air and remove odors from the source

stability and low battery indicators

and iron plant supplement designed to correct common deficiencies or imbalances in both Vegetative and Flowering phases

The 6" Long handle is made of high-strength & lightweight hardwood that fits comfortable in the hand

16x20x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 1 Pack Fertilizer Displays time remaining on cycleImportant 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 16x20x4 filter