The Lennox Y9822, equivalent to the AprilAire 410 filter media, is an expandable replacement air filter designed for AprilAire whole-house air cleaner housings. This 25 x 16 x 4 inch filter features a high-efficiency MERV 11 media that captures airborne particles such as dust, pollen, mold spores, pet dander, and lint, helping maintain cleaner indoor air and consistent HVAC system performance.

The expandable frame design allows the filter to fit securely inside compatible AprilAire cabinets while maximizing surface area for improved airflow and longer service life. It is engineered for residential HVAC systems where reliable filtration and low pressure drop are critical.

 

Key features and benefits:

• MERV 11 rated media for effective removal of common household airborne contaminants
• Expandable filter design increases surface area for improved airflow
• Helps protect HVAC equipment by reducing dust buildup on internal components
• Supports cleaner indoor air and improved system efficiency
• Designed for use with compatible AprilAire whole-house air cleaner housings

 

Applications:

• Residential forced-air HVAC systems
• Whole-house air cleaners using AprilAire expandable media
• Homes with pets, allergy concerns, or higher indoor air quality requirements

 

Specifications:

Filter type: Expandable replacement filter media
Nominal size: 25 x 16 x 4 inches
Actual size: Approximately 24.6 x 15.6 x 3.5 inches
Efficiency rating: MERV 11
Frame material: Expandable metal/plastic support frame with pleated media
Application: Whole-house air cleaner replacement