Lennox 54W21 – 100929-04 is a high-quality 20 x 20 x 2 inch pleated air filter designed to improve indoor air quality for residential and light commercial HVAC systems. Built with dependable MERV 8 filtration, this filter effectively captures common airborne contaminants such as dust, pollen, lint, mold spores, and pet dander. Its durable pleated media increases surface area for better airflow and longer service life, making it a reliable choice for routine maintenance. Ideal for homeowners and technicians looking to maintain cleaner air and protect HVAC components from buildup.

 

Key features:

• Original Lennox 100929-04 replacement filter for 20 x 20 x 2 inch applications
• MERV 8 rating captures dust, pollen, mold spores, and other everyday particles
• Pleated synthetic media provides consistent airflow and extended filter life
• Strong frame construction resists moisture and maintains rigidity in high airflow systems
• Helps maintain HVAC efficiency by reducing dirt accumulation on internal components
• Suitable for furnaces, air handlers, and packaged units requiring 20 x 20 x 2 filters

 

Specifications:

• Nominal size: 20 x 20 x 2 inch
• Actual size: Approximately 19-1/2 x 19-1/2 x 1-3/4 inch
• MERV rating: MERV 8
• Filter type: Pleated synthetic media
• Frame: Moisture-resistant cardboard
• Compatibility: Fits systems requiring a 20x20x2 inch filter (verify model fitment before ordering)