24x24x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack timers-and-instruments Current Flow – 0

Current Flow – 0

• Can be used indoors and outdoors

Replace only the pH probe

Frequently Asked Questions

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24x24x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack timers-and-instruments Current Flow – 0Nordic 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