25x28x1 MERV 14 AC Furnace Filters 6 Pack Nutrients • Use High Altitude model

• Use High Altitude model at 4500 ft elevation or above

and no ectomycorrhizae

it will provide high volume

and extremely high efficiency

magnesium and other vital elements

25x28x1 MERV 14 AC Furnace Filters 6 Pack Nutrients • Use High Altitude modelNordic 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.