14x14x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack bloom Breathable fabric helps prevent heat

Breathable fabric helps prevent heat stress and keeps you cool over long hours

20 tubes per pack

It can be used in hydroponic applications of all kinds

Includes 12-foot corded sensor probe

14x14x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack bloom Breathable fabric helps prevent heatNordic 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