18x24x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack spl_hw Hollow design have better airflow

Hollow design have better airflow and great heat dissipation

It also comes with a lid and bottom catching tray

The amount of water is not critical

Pest Control: The oils in Trifecta combine to control and repel key pests like Aphids

• Mix with 100 times water: Depending on soil

18x24x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack spl_hw Hollow design have better airflowNordic Pure 18x24x4 Pleated Air Filters MERV 10 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured using a heavy duty, moisture resistant beverage