18x18x2 Pleated MERV 13 Air Filters 3 Pack cloning-and-seed-starting Remove 94%+ of all Parts

Remove 94%+ of all Parts Per Million from your tap water

The thin shutter blades automatically open when the duct fan runs and closes when not in use

The NaOClean E-Water system reduces the use of synthetic chemical disinfectants and preservatives

For use in soil gardening applications

and mess-free way to grow — no switching costs

18x18x2 Pleated MERV 13 Air Filters 3 Pack cloning-and-seed-starting Remove 94%+ of all PartsNordic 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