18x24x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack refurbished-products • Replaceable double junction pH

• Replaceable double junction pH probe

Its UV treatment kills all living bacteria and microbes and ensures safe water for your family and plants

05 lph) to 97 gpd (15

such as mites

The enclosed chamber includes a floating raft hydroponic system with a 32-cell Styrofoam tray

18x24x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack refurbished-products • Replaceable double junction pHNordic 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