The Lennox Y5475 pleated air filter is a dependable HVAC replacement filter designed to balance effective filtration with consistent airflow. Manufactured by Filtration Group, this Aerostar Series 400 filter is built for residential and light commercial heating and cooling systems that require reliable, everyday air filtration.

With an actual size of 24 x 12 x 1 inches and a MERV 8 rating, this filter captures common airborne contaminants such as dust, pollen, lint, and mold spores. The pleated media design increases surface area, allowing the filter to trap more particles while helping maintain proper airflow through the system. This helps reduce strain on HVAC equipment, supports system efficiency, and contributes to cleaner indoor air.

The Aerostar Series 400 is a practical choice for homeowners and contractors looking for a quality replacement air filter that protects HVAC components and supports healthy indoor environments without restricting airflow. It is well suited for routine maintenance schedules and is compatible with a wide range of standard 1-inch filter applications.

Key features and benefits include efficient MERV 8 filtration for everyday airborne particles, pleated media construction for improved dust-holding capacity, support for proper airflow and HVAC system performance, and suitability for residential and light commercial HVAC systems.

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