14x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack reflective-&-greenhouse-films GROW1 has packaged this proven

GROW1 has packaged this proven technology into a compact

Get precise reading with three scales

ValuLine centrifugal inline fans are specifically designed for simple installation and engineered for many years of maintenance-free operation

Front Panel mounted circuit breaker for protection from electrically shorted fixtures

THIS UNIT REQUIRES A VACUUM PUMP AND DRY ICE TO FUNCTION

14x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack reflective-&-greenhouse-films GROW1 has packaged this provenNordic 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