12x12x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack pumps-&-irrigation Every model is built for

Every model is built for direct connection in-line with standard diameter round ducting

per gallon of water and pour into a suitable sprayer

The added benefit of fibrous peat moss and coarse perlite makes this formulation ideal for growers who require a superior-quality product adapted to their needs for watering flexibility and crop seasonality

black trim

With a slim form factor available in three lengths and six spectral options

12x12x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack pumps-&-irrigation Every model is built forNordic 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