12x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack organic If it’s windy outside cover

If it’s windy outside cover plants after application for about a half hour

flowers and fruit

4-hour when used as a dip or dust

Long-term preventive use ensures top results

Left chest pocket for storage of items such as pens

12x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack organic If it’s windy outside coverNordic Pure Half Inch Ring Panel AC Furnace Air Filters consist of an internal frame bonded between flat layers of two different types of electrostatically charged HVAC furnace filter media. The first layer is a high capacity, polyester filter material which acts as a pre filter, capturing large airborne particles. The second, more efficient, layer is a MERV rated smooth poly blend filter material. The electrostatic charge works as a magnet to draw in