12x20x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 6 Pack PH/EC/TDS Meters and Solutions Allows for quick attachment at

Allows for quick attachment at the fixture for easy installation and maintenance

Xtra versatile—works with most fixtures

sponge mop or chemical spray device or by immersion so as to thoroughly wet all surfaces

Effective in soil or hydroponics

In addition to protecting your eyes under the bright lights of your indoor grow

12x20x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 6 Pack PH/EC/TDS Meters and Solutions Allows for quick attachment atNordic 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