17x20x1 MERV 13 AC Furnace Filters 12 Pack HPS and extremely high efficiency

and extremely high efficiency

For use on any plants

The bags are tear and puncture resistant and durable

Concentrated pH adjustment liquid

Mercenary is an all-natural insecticide derived from essential oils that prevents and controls eggs

17x20x1 MERV 13 AC Furnace Filters 12 Pack HPS and extremely high efficiencyNordic Pure MERV 13 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 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200