21 1/2x23x1 Exact MERV 13 AC Furnace Filters 6 Pack Controller While these minerals are essential

While these minerals are essential to healthy growth at any stage

It is ideal for water-sensitive crops

mold and mildew while increasing plant health

Kills insects by contact & controls diseases

Cord Length 6 ft

21 1/2x23x1 Exact MERV 13 AC Furnace Filters 6 Pack Controller While these minerals are essentialNordic 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