12x27x1 Exact MERV 7 AC Furnace Filters 6 Pack pumps-and-irrigation-supplies 23Cell top diameter (inches): 1

23Cell top diameter (inches): 1

noise min to 25dB

The pHEP 4 includes a dual-level LCD

Compliance: ETL

12x27x1 Exact MERV 7 AC Furnace Filters 6 Pack pumps-and-irrigation-supplies 23Cell top diameter (inches): 1Nordic Pure MERV 7 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 and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters