20x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack Growing Media • Vegetable crops: 2-4 weeks

• Vegetable crops: 2-4 weeks after emergence

making it durable for long-term field use

The Max-Fan saves space

Replaceable cartridges (item code NERKC20)

HO (high output) lighting fixture

20x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack Growing Media • Vegetable crops: 2-4 weeksNordic 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