Filter Hut's 12x24x4 air filter is an extended surface pleated filter, which outperforms standard air filters with medium efficiency, and are builtfor lower pressure drop, and extended service life, which reduces HVAC equipment maintenance and energy costs. This 12x24x4 air filter is measured to ASHRAE test standards 52.2, which assures that the air filter will perform as good or better than original brand 12 x 24 x 4 air filter.
- 12x24x4 nominal size.
- 11.4375x23.4375x3.5 actual size.
- Pleated design.
MERV graded to ASHRAE standards.
- 983 cfm flow rate.
- 12 filters to a case.