12x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack double-ended Used from seed starting to

Used from seed starting to mature plants

and dust from seeping inside

Grodan Expert is the slab that drains the fastest because of its vertical fibers

0 micron contaminants

Sourced from established and reputable farms

12x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack double-ended Used from seed starting toNordic 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