15x18x1 Exact MERV 14 AC Furnace Filters 6 Pack DUCTWORK No ballast needed

No ballast needed

Suggested Uses: Use throughout the plant's growing cycle to alleviate stress and to optimize growth and plant health

such as wells

Several strains that can digest typically indigestible plant residue that can be put back into the rhizosphere to support the growth of the microbial community

15x18x1 Exact MERV 14 AC Furnace Filters 6 Pack DUCTWORK No ballast neededNordic 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.