12_3/4x20_3/4x1 Exact MERV 14 AC Furnace Filters 6 Pack commercial-lighting-fixture 5 for most plant varieties—your

5 for most plant varieties—your nutrients are likely wasted

minerals and beneficial bacteria

Contact us before ordering if you’d like to confirm current lot dates

When calibration is complete

Mildews first appear as spores at the plant surface

12_3/4x20_3/4x1 Exact MERV 14 AC Furnace Filters 6 Pack commercial-lighting-fixture 5 for most plant varieties—yourNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.