13x20x1 Exact MERV 13 AC Furnace Filters 12 Pack New-releases or individually

or individually

broadleaf weeds

highest par/lumen output (986umol@18")

Do not release in direct sunlight

Expect higher intensity and more even coverage in a tent

13x20x1 Exact MERV 13 AC Furnace Filters 12 Pack New-releases or individuallyNordic 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