16x20x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack pots for an initial boost

for an initial boost

and potassium to enhance the plant's photosynthetic rate and energy transfer throughout the plant

Simple CO2 controller with display and day/night detection

Each HLG-550 V2 uses 4 of our custom designed full-spectrum high efficiency white light quantum boards with Samsung LM301B and Blue 470nm

16x20x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack pots for an initial boostNordic 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