20x22x1 Pleated MERV 13 Air Filters 6 Pack nutrient-combo Activating this culture will create

Activating this culture will create 20x more product

or other supports without damaging the delicate stems and plant tissue

Use with CO2 regulator and tank to evenly distribute CO2 to your grow area and plants

and BPA-free

20x22x1 Pleated MERV 13 Air Filters 6 Pack nutrient-combo Activating this culture will createNordic 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