17x25x1 Exact MERV 13 AC Furnace Filters 12 Pack organic Plants have evolved in the

Plants have evolved in the ground

Use in conjunction with regular nutrient program throughout the vegetative stage and first three weeks of the bloom stage

Bio-NRG Bloom-C encourages beautiful and bountiful blooms

aluminum blades

17x25x1 Exact MERV 13 AC Furnace Filters 12 Pack organic Plants have evolved in theNordic 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