10x20x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack harvest-solutions use during warm (above 60°F)

use during warm (above 60°F)

This new series features a "Master Mat" with Add-On mats sold separately

This technology enables the dual 92mm fans to be able to run smoothly at extremely low RPM speeds without generating motor or electromagnetic noises

fast growing plants with shorter stature perfect for stacked growth

10x20x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack harvest-solutions use during warm (above 60°F)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