18x24x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack ventilation and ducting Open design allows for viewing

Open design allows for viewing birds from most angles

and easy access reservoir lid

92in L x 3

Features platinum TDS/EC sensor and thermister

Our EXTRACT

18x24x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack ventilation and ducting Open design allows for viewingNordic 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