25x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Promote • Control and monitor climate

• Control and monitor climate conditions in your grow room 24/7/365 from anywhere

Light Intensity: 0-2000 PPFD

and operate for only pennies a day

which is activated in several circumstances such as when the pH is below the set points in the operator-adjustable threshold of 0

25x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Promote • Control and monitor climateNordic 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