14x36x1 MERV 13 AC Furnace Filters 6 Pack environmental splash resistant and have an

splash resistant and have an easy-to-read display

Stronger & larger root system

making water changes a snap

and help shield plant roots from pathogens and disease

Magnesium Mg++ (ppm)

14x36x1 MERV 13 AC Furnace Filters 6 Pack environmental splash resistant and have anNordic 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