12x20x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack Lamps Pre-load a second Drum ready

Pre-load a second Drum ready for your next batch

Persimmons

A replacement probe for Bluelab Combo and pH Meters

Expect higher intensity and more even coverage in a grow tent

Measurement Range: 0-9990 µS

12x20x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack Lamps Pre-load a second Drum readyNordic 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