25x25x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 6 Pack Tents & Tarps • 100% metal

• 100% metal

Press gently around stem

377 cfm) at neutral pressure

Adjustable CO2 setpoint from 400 ppm to 2100 ppm

25x25x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 6 Pack Tents & Tarps • 100% metalNordic 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