17x21x1 Exact MERV 14 AC Furnace Filters 12 Pack nutrients and supplements Available in Green and Black

Available in Green and Black

Adjustable Trend Chart Zoom levels let you trace your ppm levels

HI12302 is the general purpose HALO pH electrode

The two-part system allows for versatility and efficient use of space

17x21x1 Exact MERV 14 AC Furnace Filters 12 Pack nutrients and supplements Available in Green and BlackNordic 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.