13x21_3/4x1 Exact MERV 13 AC Furnace Filters 6 Pack veg nutrients Bloom Stage MICROBES are a

Bloom Stage MICROBES are a specific group of Beneficial Bacteria and Fungi formulated specially for the Flower/Bloom Stage of plants

The unique design of the electrode provides longer life in aggressive solutions

Design keeps them both contained even after separation

Finally a compost tea brewing bag with commercial durability

13x21_3/4x1 Exact MERV 13 AC Furnace Filters 6 Pack veg nutrients Bloom Stage MICROBES are aNordic Pure MERV 13 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, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200