Nordic Pure 18x24x1 MERV 12 Pleated AC Furnace Air Filters 6 Pack
- Nominal Size: 18 x 24 x 1, Actual Size: 17 1/2 x 23 1/2 x 3/4 (17.5 x 23.5 x 0.75).
- Measure your air filter for the exact size and compare it to our actual size to ensure proper fit..
- Ideal for high efficiency air filtration and will help those with moderate allergies and asthma..
- Nordic Pure MERV 12 is equivalent to MPR 1500-1900.