13x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12 Pack Commercial Lighting Highly recommend for any serious

Highly recommend for any serious indoor operation

healthy vegetative growth and overall exceptional plant performance

• Runs 15% cooler than other digital ballasts on the market

In-built drive and motor protection

Is the exact same dimensions as AIRPLATE S9 and T9

13x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12 Pack Commercial Lighting Highly recommend for any seriousNordic 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.