20x20x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack Ventilation The CubeCap deprives the cube

The CubeCap deprives the cube of its light by reflecting it back up towards the plant and away from the top of the block

a powerful source of potassium and magnesium that is carefully mined from ancient sea beds in the desert of the American Southwest

Tundra promotes flower and fruit development and quality in fast-growing specialty crops High levels of phosphorus and potassium provide the crop with critical nutrients to promote flower set and uniform development while Tundra's™ unique biostimulating compounds enhance plant vigor

This product is OMRI listed

5" x 16" x 6"

20x20x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack Ventilation The CubeCap deprives the cubeNordic 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