12x12x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack house and amp This is the optimal method

This is the optimal method to trigger and focus the cuttings response to form healthy

those for Propane and those for Natural Gas

This technology is revolutionizing the horticultural lighting industry in both lowering electric usage and increasing overall crop yield

With cantilevered mounting

Blank panel helps conceal gaps in the rack and supports proper thermal control by directing airflow

12x12x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack house and amp This is the optimal methodNordic 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