Lennox 21U41 (106876-02) is a high-performance pleated commercial air filter engineered for superior indoor air quality and reliable HVAC system protection. With a MERV 16 efficiency rating, this OEM Lennox filter is designed to capture fine airborne particles including dust, pollen, mold spores, bacteria, and other microscopic contaminants commonly found in commercial and light industrial environments.

This pleated HVAC air filter features a nominal size of 20 x 25 x 2 inches, with actual dimensions of 25 inches wide, 20 inches high, and 2 inches thick, ensuring a proper fit in compatible Lennox commercial HVAC systems. The dense pleated media maximizes surface area for improved filtration efficiency while helping maintain consistent airflow and system performance.

Ideal for use in offices, healthcare facilities, schools, and other commercial applications where air quality is critical, the Lennox 21U41 air filter helps reduce strain on HVAC components, extend equipment life, and support cleaner, healthier indoor spaces. As a genuine OEM replacement, it meets Lennox manufacturing standards for fit, performance, and durability, making it a dependable choice for routine maintenance or filter replacement programs.