20x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack cleanroom - Grow pots for 4-6

- Grow pots for 4-6 plants

low-nitrogen formula supports strong

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Supplementing calcium and magnesium is one of the secrets of expert growers and results in more vigorous plants and larger yields

Hydroponic Application Rate: 1-5 ml per gallon of water in reservoir

20x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack cleanroom - Grow pots for 4-6Nordic 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