12x27x1 MERV 14 AC Furnace Filters 6 Pack Master Controller Use indoors and outdoors

Use indoors and outdoors

seedlings and cuttings

herbicides

soil conditioning

Start with Bio·Grow® as soon as the first leaves appear and the plant has a height of 10 to 15cm

12x27x1 MERV 14 AC Furnace Filters 6 Pack Master Controller Use indoors and outdoorsNordic 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.