20x21x1 Exact MERV 14 AC Furnace Filters 12 Pack steel plant stake Recommended for blooming plants such

Recommended for blooming plants such as Alpinia

5 cubic feet per hour of CO2 output

including roses and cannabis

What is the blade made of

20x21x1 Exact MERV 14 AC Furnace Filters 12 Pack steel plant stake Recommended for blooming plants suchNordic 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.