Factory original filter from Aprilaire. This accordian-style filter ships flat for easy storage and slides into place via the unique Aprilaire interlock rail system. Unpack. Slide in. Close the door. Done.
- MERV 11 filtration traps common airborne allergens as they pass through the MERV 11 filter including dust, pollen, mold spores, bacteria, pet dander, and dust mites
- Deep pleat design creates minimal airflow resistance
- Nominal Dimensions: 16″ x 20″ x 4″
- Fits Aprilaire whole-house air purifier models: 1110
- Factory original, OEM product
