18x18x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack lighting This exceptional organic product works

This exceptional organic product works on contact

- Cylindrocladium

PfrSpec: 126 μmol/s

and one porthole cover—a great value at an affordable price

18x18x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack lighting This exceptional organic product worksNordic 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