14x20x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack pots-and-containers PhysioSpec™ improves crop quality

PhysioSpec™ improves crop quality

While these work well outdoors

- Improves uptake

each lamp is tailored to promote optimum development at each plant growth stage

Plant health and vigour rely heavily on the roots getting enough oxygen — roots need O2 to convert carbohydrates to energy

14x20x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack pots-and-containers PhysioSpec™ improves crop qualityNordic 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