21x22x1 MERV 10 AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs Once applied to a growing

Once applied to a growing medium

See the label information for full list of uses and instructions

which can be continuously fed

100% speed-controllable

21x22x1 MERV 10 AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs Once applied to a growingNordic Pure MERV 10 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, allergens and other contaminants are removed. MERV 10 furnace filters are comparable to HVAC filters with the rating of MPR 900 1000. While different companies