12x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack featured Its fan speed can dynamically

Its fan speed can dynamically adjust itself to current temperature or humidity levels

- Standard e39 base

STURDY AND DURABLE – Heavy-duty plastic construction will endure through many growing cycles

Controls mites

• Pre-galvanized powder coated body for durability

12x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack featured Its fan speed can dynamicallyNordic 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