20x21x1 Exact MERV 14 AC Furnace Filters 6 Pack complete grow kit Can be used to re-condition

Can be used to re-condition soil between planting seasons

All transplants to ensure a healthy

Requires 2 AAA batteries (included)

Includes corded power adapter to plug the fan system through an outlet

20x21x1 Exact MERV 14 AC Furnace Filters 6 Pack complete grow kit Can be used to re-conditionNordic 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.