14_1/2x19x1 Exact MERV 13 AC Furnace Filters 6 Pack beneficial microbes CO2 Device Stations: Max

CO2 Device Stations: Max

Assassin Bugs begin feeding as soon as they emerge

Its sleek metal design makes this box easy to mount and durable during all of your grow room endeavors

Plant Growth Promoting Substrate (protein-based nitrogen

ensuring fast and easy cleanup

14_1/2x19x1 Exact MERV 13 AC Furnace Filters 6 Pack beneficial microbes CO2 Device Stations: MaxNordic 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