18x18x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack Power & Lamp Cords • Automatically turns off after

• Automatically turns off after 5 minutes

US5002272 - PAR=1950 μmol/s

thereby producing larger

Made from 80% recycled materials

We recommend that you change your air filter every 3-6 months to maintain maximum efficiency and economy

18x18x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack Power & Lamp Cords • Automatically turns off afterNordic 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