21x21x1 MERV 13 AC Furnace Filters 6 Pack Nutrients and Supplements Hang horizontally or vertically

Hang horizontally or vertically

5''-18'' Diameters

Pick it up and grow

Heavy duty and reusable

Impedance protected motors contain windings that has a higher resistance to heat during a rotor lock

21x21x1 MERV 13 AC Furnace Filters 6 Pack Nutrients and Supplements Hang horizontally or verticallyNordic 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