25x25x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack AC / Dehumidification / Humidification This encourages the rapid expansion

This encourages the rapid expansion of beneficial microbe colonies in the growth medium

endomycorrhizae

Extracts heat from the Sunburst reflector

Why Purafil Canisters

Starter ''Tissueponics'' kits provide growers with prepared liquid media and vessels for a fast and easy tube-growth and direct to plug planting

25x25x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack AC / Dehumidification / Humidification This encourages the rapid expansionNordic 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