20x24x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack spl_hf Includes- Summit Ballast

Includes- Summit Ballast

5-inch diameter ABS case with 372 plastic window

Works great in EZ clone type setups

All natural ingredients (see Technical tab for more detailed information)

Energy efficient

20x24x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack spl_hf Includes- Summit BallastNordic 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