12x25x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack AIR FILTER BOXES Deluxe Kits include:

Deluxe Kits include:

The included batteries provide 600 hours of continuous use

Included is an alarm relay

Pole Diameter - 19mm

12x25x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack AIR FILTER BOXES Deluxe Kits include:Nordic 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