10x25x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack grow-light-ballasts • Height Adjusting with the

• Height Adjusting with the patent pending adjustable extension poles (sold separately) allowing you to increase the height of your grow tent from 6' 7" to 7' 7"

This microscope comes a protective cover

Downy Mildew and Many Other Foliar Plant Diseases

- Trichoderma harzianum Rifai strain T-22

• High red and blue spectral ratios for good photosynthesis efficiency

10x25x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack grow-light-ballasts • Height Adjusting with theNordic 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