16x27x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack commercial-lighting-fixture It boasts an incredible concentration

It boasts an incredible concentration of 4

4 27 27 18 HGDRRDP65 Commercial Dirt Pot by RediRoot #65

Adding a small amount improves the utilization of standard feed mixes

durable plastic construction means you'll be seeing them in your garden and grow room for years

as well as controls from the fixture

16x27x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack commercial-lighting-fixture It boasts an incredible concentrationNordic 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.