14x20x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack HPS And unlike our competitors

And unlike our competitors

BULK (2-12-3) is a PK booster that contains high-quality phosphorus

CO2 Control Range:                           400-2000 PPM

BATTERY LIFE / TYPE - 250 hours / 3 x 1

Many growers use iGS-061 in an air conditioned and sealed room

14x20x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack HPS And unlike our competitorsNordic 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