20x24x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack Water Treatment Measuring Range: 0~100%

Measuring Range:                            0~100%

1 in inlet and outlet

Fully controllable with ILUMINAR’s Touch+ and Hash controllers

100% cold-pressed neem oil to keep leaves clean and plants healthy

ECOWORKS EC is an OMRI-Listed 4-in-1 organic broad-spectrum insecticide

20x24x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack Water Treatment Measuring Range: 0~100%Nordic 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