16x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack Pumps & Irrigation Note: For optimum performance please

Note: For optimum performance please do not exceed 8

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But CalCarb is an unusual form of calcium carbonate that is highly unstable

5-18 in diameters

16x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack Pumps & Irrigation Note: For optimum performance pleaseNordic 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