20x30x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack soil The inline variable-speed controller can

The inline variable-speed controller can turn the fan and off

They fit inside the reservoir top to guarantee that any water that may collect on top falls back into the reservoir

Allows evaporative cooling in hot climates & provides thermal insulation in cold climates

Save your staff time

Temperature / Humidity / CO2 (PPM) 3-in-1 sensor

20x30x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack soil The inline variable-speed controller canNordic 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