12x12x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack Environmental Controllers Even Light Distribution: Precisely designed

Even Light Distribution: Precisely designed to deliver uniform levels of photosynthetic flux density (PPFD)

or 100-200 per square meter

You can easily switch between voltage settings on the Airis Mystica II

Mini-Sachets/Sachets on Sticks: Place one sachet or stick per propagation tray or plant

12x12x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack Environmental Controllers Even Light Distribution: Precisely designedNordic 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