20x25x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 6 Pack chillers-heaters-and-purification 10' drain tubing

10' drain tubing

"I run a small hydro operation and water quality is everything

Tethers to computers via USB cable for easy data logging

Can be used to replace or rewire a reflector

• FULL 5-YEAR BALLAST WARRANTY

20x25x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 6 Pack chillers-heaters-and-purification 10' drain tubingNordic 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