17x17x1 Exact MERV 8 Plus Carbon AC Furnace Filters 12 Pack Environmental Controllers • Stronger corners and thicker

• Stronger corners and thicker walls than any others in their class

Size: 1U Rack Space | Design: Front Exhaust | Airflow: 40 to 180 CFM | Noise: 9 to 32 dBA | Bearings: Dual Ball

Platinium HydroStone can be utilized for growing in both rockwool cubes and square pots

and starter sheets is by far the best on the market with superb air to water ratio and a fibre structure that holds water longer and has less resistance for the roots to grow in

17x17x1 Exact MERV 8 Plus Carbon AC Furnace Filters 12 Pack Environmental Controllers • Stronger corners and thickerNordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.