14x20x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack Travel Bags & Backpacks * Note other supplies required:

* Note other supplies required: HEPA air filter

Remove the filter access panel to remove and replace the filter

They include graduation and spout

Perfect for vertical farms and vegetative stages of plant cycle

000 watt version

14x20x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack Travel Bags & Backpacks * Note other supplies required:Nordic 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