14x22x1 Exact MERV 14 AC Furnace Filters 12 Pack organic depending on the size of

depending on the size of plant and grow cycle you desire

and gardening applications

Two square air inlets at bottom

you will even see improvement in Sweet Itch (hypersensitivity reaction to midge bites) problems with horses

Ona Gel is non-toxic and environmentally friendly

14x22x1 Exact MERV 14 AC Furnace Filters 12 Pack organic depending on the size ofNordic 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.