17x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Water Pumps & Irrigation Supplies It’ s a professional-grade single-zone

It’ s a professional-grade single-zone environmental control system

CO2 is scientifically proven to improve the performance of your plants

The 5 lb Apollo has a 2 part material column

Trim Bin features a two-part tray system that comes with a standard 150-micron screen to filter and collect finer plant matter

or three full blade cartridges for storage (3 helical blades

17x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Water Pumps & Irrigation Supplies It’ s a professional-grade single-zoneNordic 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.