20x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack tents-&-tarps The pH is taken care

The pH is taken care of

in a much higher percentage (22

sample (approx

875″ x 10

Offering the highest available PAR light output and increased spectrum

20x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack tents-&-tarps The pH is taken careNordic 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