20x21x1 Exact MERV 7 AC Furnace Filters 6 Pack aaron They have taken their original

They have taken their original proprietary kelp extract to the next level

Temp Device Stations: Max

You should always measure your current filter or the housing to make sure the actual size correlates with the filter you are ordering

Eight speed options are available with power on/off switch

20x21x1 Exact MERV 7 AC Furnace Filters 6 Pack aaron They have taken their originalNordic 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