14x20x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack Water Pumps & Irrigation Supplies a large voltage adjustment dial

a large voltage adjustment dial

for the end user

backyard or patio

4kg Cut Height 0

14x20x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack Water Pumps & Irrigation Supplies a large voltage adjustment dialNordic 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