17x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights 1 pH sensor

1 pH sensor

Speed: Variable 0-80 RPM

easy-to-use and cost-effective

and four cage nuts

Once you've started to sprout

17x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights 1 pH sensorNordic 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.