18x18x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack control system Nordic Pure 12x24x4 Pleated Air

Nordic Pure 12x24x4 Pleated Air Filters MERV 8 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home

25% More Axillary Branching

Harvest up to three flushes of mushrooms

Bacillus laterosprorus

Hanging loops at top and bottom so you can flip entire unit for faster drying

18x18x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack control system Nordic Pure 12x24x4 Pleated AirNordic 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