20x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Sprayers and Wands New Grodan Improved

New Grodan Improved

It surrounds and seals delicate new cuttings

PHOTO•LOC Light Output Control allows precise control over the photons that are delivered to the plant canopy when used in conjunction with a 0–10V controller

Dimensions - 12

Grow A optimizes vegetative development by helping the plant take in and break down nitrogen sources

20x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Sprayers and Wands New Grodan ImprovedNordic 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