14x25x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack grow media providing your plants with the

providing your plants with the 17 essential nutrients

7) and balanced pH (6

and coconut coir

Pure Sugar Cane

14x25x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack grow media providing your plants with theNordic 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