16x21x1 MERV 13 Plus Carbon AC Furnace Filters 12 Pack X Nutrients bloom Mycorrhiza is a powerful root

Mycorrhiza is a powerful root enhancer that occurs naturally in forest soils where the humus content is high and the soil is thriving with microbial life

and is relatively non-toxic

We recommend using this filter in conjunction with our 10'' fan for optimum efficiency

Btk only affects the larval (caterpillar) stage of the the Lepidoptera order of insects

Fish·Mix™boosts growth of all living organisms in the substrate

16x21x1 MERV 13 Plus Carbon AC Furnace Filters 12 Pack X Nutrients bloom Mycorrhiza is a powerful rootNordic 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.