22x36x1 MERV 13 AC Furnace Filters 6 Pack Cone Filler Twistpot allows excellent drainage and

Twistpot allows excellent drainage and air circulation to your roots

6 L/kWh - 5

Controller (Gen 2) Sold Separately

Double-ended system delivers higher PAR value with excellent uniformity

22x36x1 MERV 13 AC Furnace Filters 6 Pack Cone Filler Twistpot allows excellent drainage andNordic 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