14x20x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack Travel Bags & Backpacks Increased wear resistance

Increased wear resistance

Remove the filter access panel to remove and replace the filter

and 20 pcs of the 25 packs)

no chemical additives or secondary contaminants introduced during filtration

* Note other supplies required: HEPA air filter

14x20x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack Travel Bags & Backpacks Increased wear resistanceNordic 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