The Lennox Y5323 (Filtration Group 10391) Aerostar Series 400 air filter delivers reliable, everyday protection for HVAC systems in residential, commercial, and light industrial environments. Built with high-capacity pleated media, it improves airflow efficiency while capturing common airborne contaminants that contribute to poor indoor air quality.

Designed to fit standard 24 x 24 x 2 inch filter cabinets, this MERV 8 filter helps protect blowers, coils, and ductwork from dust buildup, extending equipment life and maintaining system performance. Ideal as a cost-effective replacement filter for routine maintenance cycles.

 

Key Features:

 

• MERV 8 pleated filter captures dust, lint, pollen, mold spores, and debris
• Heavy-duty construction with moisture-resistant frame for dependable performance
• High-capacity pleats increase dust-holding ability and maintain airflow efficiency
• Suitable for residential, commercial, and light industrial HVAC systems
• Standard 24 x 24 x 2 inch size for easy installation in compatible filter cabinets
• Cost-effective replacement option for routine system maintenance

 

Specifications:

 

• Filter Size: 24 x 24 x 2 inch (nominal)
• Actual Size: 23.5 x 23.5 x 1.75 inch (approx.)
• MERV Rating: MERV 8
• Media Type: Synthetic pleated filter media
• Frame Type: Moisture-resistant beverage board
• Application: HVAC air filtration – residential, commercial, light industrial