24x25x1 MERV 14 AC Furnace Filters 6 Pack grow-light-ballasts Growing in a compact space

Growing in a compact space where every inch matters

The insulated damper uses gravity-fed shutters that close the opening when the whole house fan is not in use

This product is also effective against Gnats

depending on soil conditions and worm population density

Bloom 6'X3'

24x25x1 MERV 14 AC Furnace Filters 6 Pack grow-light-ballasts Growing in a compact spaceNordic 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.