18x27x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack nutrient-combo Discontinue use 1-2 weeks prior

Discontinue use 1-2 weeks prior to harvest for best results

• Rack mounting to prevent heavy lifting

- Made in the USA by people who care

• Tumbler Diameter: 6

Free Bluelab® Connect™ Software available from bluelab

18x27x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack nutrient-combo Discontinue use 1-2 weeks priorNordic 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.