20x25x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack Odor Control and patented phosphorus-utilization technology

and patented phosphorus-utilization technology

using a dedicated fan pack that is powered by the humidifier itself

Fungus Gnat Control contains Beneficial Nematodes

Protection agent Dry particulates Size Universal Pack Type Bulk Sterile No FITS CHEST SIZE N/A FITS WAIST SIZE N/A Color Black Material Polypropylene Seam Style Ultrasonically welded seams Closure Type Latex Free Elastic Country of Origin China

20x25x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack Odor Control and patented phosphorus-utilization technologyNordic 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