21x22x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Air Filter We also have a 6-site

We also have a 6-site Bubble Flow Bucket system and a 12-site Bubble Flow Bucket system available

The Elite Difference:

potassium nitrate

This Pure Carbon Pleated Air Filter offers all the benefits of activated carbon

but it can take a serious toll on your grow tent

21x22x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Air Filter We also have a 6-siteNordic 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.