Lennox Y5481 – Filtration Group 10373, Aerostar Series 400, Pleated Air Filter 25 x 16 x 1 Inch, MERV 8

Lennox Info
The Lennox Y5481 is a direct replacement filter manufactured by Filtration Group under part number 10373. Designed for HVAC systems that require high dust-holding capacity and consistent airflow, this Aerostar Series 400 filter offers dependable indoor air quality performance for both residential and light commercial applications.

Product overview
The Aerostar Series 400, 25 x 16 x 1 Inch MERV 8 pleated air filter captures common airborne contaminants such as dust, pollen, mold spores, pet dander, and debris without restricting airflow. Its pleated synthetic media provides higher efficiency and longer service life compared to standard fiberglass filters. With durable construction and a moisture-resistant frame, this filter helps maintain system performance, reduces strain on blowers, and supports cleaner, healthier air circulation throughout the home or building.

Specification
• Size: 25 x 16 x 1 Inch
• MERV Rating: MERV 8
• Series: Aerostar Series 400
• Brand: Filtration Group
• Part Number: 10373
• Compatible With: Systems requiring 25 x 16 x 1 filters
• Filter Media: Pleated synthetic fiber
• Frame: Moisture-resistant construction
• Application: Residential and light commercial HVAC filtration
• Purpose: Captures dust, pollen, mold spores, lint, and other airborne particles