14x14x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack Reflective & Greenhouse Films Be cautious when using Elite

Be cautious when using Elite 91 CalMag on young or weak plants as the nitrates (along with other nitrates from your base nutrient) can cause tip burn and stress

making them compatible with all reflector types

This Product Controls These Pests or Diseases: For use to control aphids

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14x14x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack Reflective & Greenhouse Films Be cautious when using EliteNordic 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