16x20x2 Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 3 Pack spl_spectrumking Designed for use in greenhouses

Designed for use in greenhouses

Grow-Cubes are difficult to overwater if the container has good drainage

and 2 sachets of Shooting Powder -- all in one box

remove the most affected plants and use a knock-down spray (see Neem Oil)

Use with a high static pressure fan like the CLOUDLINE Series of duct fans is highly recommended to ensure maximum filtration

16x20x2 Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 3 Pack spl_spectrumking Designed for use in greenhousesNordic Pure Pure Carbon Pleated Odor Reduction MERV 8 Air Filters is made with a durable non woven polyester base media infused with naturally derived charcoal, created to eliminate odors in your office or home. Our pleated design provides three times as much carbon media per A C filter but maintains excellent air flow. Our Pure Carbon air filters are manufactured using a heavy duty, moisture resistant beverage board frame. There is a metal mesh