21x22x1 Exact MERV 7 AC Furnace Filters 6 Pack Controllers One continuous and corrosion resistant

One continuous and corrosion resistant helix wire is placed in the duct wall for structural support

5mil thick black and white Panda Film

• Use on medical plants and hemp

Lightweight with minimal size

21x22x1 Exact MERV 7 AC Furnace Filters 6 Pack Controllers One continuous and corrosion resistantNordic 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