17x20x1 MERV 12 AC Furnace Filters 12 Pack Reflective & Greenhouse Films Several strains that release compounds

Several strains that release compounds that help capture iron and make it available to the plants

Thermally protected

Webbing/Outbreak: 10+ per square foot after using a knockdown spray and cleaning the growing area

Spider Mites (Mult)

This ionization equipment is effective in reducing harmful pollutants and odors by introducing positive and negative ions into the system airflow

17x20x1 MERV 12 AC Furnace Filters 12 Pack Reflective & Greenhouse Films Several strains that release compoundsNordic 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