21x22x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack propagation trays leading to constant issues with

leading to constant issues with pH and nutrient “hotspots

Refer to the product label for specific dilution and coverage rate guidelines for your target application

Square box underneath:

Dimensions: 19

Higher humidity is generally necessary with higher temperatures

21x22x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack propagation trays leading to constant issues withNordic 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.