21 1/2x23x1 Exact MERV 12 AC Furnace Filters 6 Pack micro-nutrients Active Air Carbon Filters are

Active Air Carbon Filters are loaded with virgin activated Australian granular carbon

ensuring excellent drainage and an optimal root environment

the Airis 8 delivers a top-tier experience with customizable voltage settings

controlling the fan in day and night modes separately

heavy-duty and waterproof

21 1/2x23x1 Exact MERV 12 AC Furnace Filters 6 Pack micro-nutrients Active Air Carbon Filters areNordic Pure MERV 12 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different