20x30x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Lighting & Electrical Components Whitefly and other plant leaf

Whitefly and other plant leaf and soil insect parasites

Day and night settings allow for accurate environmental control

Noder Fresh eliminates odors from the air and fabrics

Use caution when applying to roses and peppers

20x30x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Lighting & Electrical Components Whitefly and other plant leafNordic 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