Lennox Y5320 – Filtration Group 10388, Aerostar Series 400, 20 x 20 x 2, MERV 8.

Lennox Y5320 – Filtration Group 10388 Aerostar Series 400 is a high-quality 20 x 20 x 2 inch pleated air filter designed to improve indoor air quality in residential and light commercial HVAC systems. Built with durable pleated media and a sturdy frame, this MERV 8 filter captures common airborne particles such as dust, pollen, lint, pet dander, and mold spores, helping your system maintain cleaner airflow and more consistent performance. The filter’s expanded surface area delivers efficient particulate capture while keeping airflow resistance low, supporting better furnace and AC efficiency.

This Lennox compatible 20x20x2 filter is ideal for routine HVAC maintenance, offering dependable protection for coils, blowers, and ductwork. Easy to install and recommended for regular replacement intervals, it helps maintain optimal airflow, improves comfort, and supports longer equipment life.

Key features
• MERV 8 filtration performance helps capture dust, pollen, lint, and other common particles
• Pleated design increases media surface area for efficient filtration and longer service life
• Sturdy moisture-resistant frame for reliable operation in residential and light commercial systems
• Nominal size: 20 x 20 x 2 inch
• Helps maintain airflow efficiency and protect HVAC components
• Ideal for routine filter replacement in forced-air heating and cooling systems