24x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Master Controller 7 billion cfu's of seven

7 billion cfu's of seven highly effective beneficial microbes

Dimensions: 2’x2

gnats and fleas

aluminum foil and polyester tri-laminate

Important Note: Almost all furnace air filters have a different Actual Size (the exact dimensions) than Nominal Size (the name) printed on the air conditioning filter

24x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Master Controller 7 billion cfu's of sevenNordic 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