6x12x1 Exact MERV 13 AC Furnace Filters 6 Pack Grow Tents The Grow Flow System has

The Grow Flow System has everything you need to get started

- Kills and controls black mold

At over 30% amino acid content by weight

and nursery crops

Sonoma Gold is formulated for all on-demand fertilizer needs during the crop cycle

6x12x1 Exact MERV 13 AC Furnace Filters 6 Pack Grow Tents The Grow Flow System hasNordic 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