21 1/2x26x1 Exact MERV 8 AC Furnace Filters 6 Pack Lighting No Need for Cal-Mag Supplements:

No Need for Cal-Mag Supplements: Rich in calcium and magnesium in the optimal 4:1 ratio

Built-in aerodynamic socket

Dimensions - 11

Your go-to tool for cutting

21 1/2x26x1 Exact MERV 8 AC Furnace Filters 6 Pack Lighting No Need for Cal-Mag Supplements:Nordic Pure MERV 8 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 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters