10x24x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack growing-media • Water pumps operate on

• Water pumps operate on 120V

Red 660nm (64pcs)

pollen and honeydew

【Worry-free Warranty】36-Month US Local warranty and 30-day money-back guarantee

Hydrofarm searched globally and went to great lengths to find a source of top-quality perlite

10x24x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack growing-media • Water pumps operate onNordic 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