8x14x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12 Pack spl_jondon These loose round plugs fit

These loose round plugs fit perfectly into the Gro-Block hole

per full growing cycle

✋ Ergonomic

The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution

8x14x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12 Pack spl_jondon These loose round plugs fitNordic 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.