13x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack extraction Ionic PK Boost allows the

Ionic PK Boost allows the grower easy control of the extra phosphorus and potassium that can lead to bumper yields

Pack Type: Bulk

Mode of Action: Isaria fumosorosea

More roots means quicker growth

This controller allows you to set the idle speed to 50%

13x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack extraction Ionic PK Boost allows theNordic 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.