20x25x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack environmental-controllers • Includes feed adaptor

• Includes feed adaptor

not booster fans)

optimal full spectrum led grow lights

Eliminates plant loss due to root and crown rot diseases

heavy duty aluminum

20x25x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack environmental-controllers • Includes feed adaptorNordic 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