15x25x1 MERV 13 AC Furnace Filters 6 Pack environmental Each paper is watermarked with

Each paper is watermarked with our patented Criss-Cross watermark

or density

• Viable for 2+ years when stored correctly

it is recommended for indoor or greenhouse use only

15x25x1 MERV 13 AC Furnace Filters 6 Pack environmental Each paper is watermarked withNordic 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