18x24x4 Air Filter

Product Description
This 18x24x4 air filter is an extended surface pleated filter, which exceeds standard air filters with medium efficiency, and are engineered for decreased pressure drop, and extended service life, which reduces HVAC equipment maintenance and energy costs. The 18x24x4 air filter is measured to ASHRAE test standards 52.2, which assures that the air filter will function as good or better than OEM 18 x 24 x 4 air filter.
  • 18x24x4 nominal size.
  • 17.625x23.625x3.5 actual size.
  • Pleated design.
  • MERV graded to ASHRAE grades.
  • 1475 cfm flow rate.
  • 6 air filters to a case.
Quantity of Filters in Case
Efficiency Rating
Quantity of Cases
$ 65.90 per case