Lennox X6667 (100898-05) Healthy Climate Pleated Air Filter – 26" x 21" x 4", MERV 11

Improve your indoor air quality with the Lennox X6667 Healthy Climate pleated air filter. Engineered to deliver reliable, high-efficiency performance, this MERV 11 rated filter captures a wide range of airborne particles—including pollen, dust, mold spores, and pet dander—without restricting airflow through your HVAC system.

Key Features:

• OEM filter for use in Lennox and Healthy Climate air cleaner cabinets

• MERV 11 efficiency rating provides excellent filtration with minimal pressure drop

• Nominal dimensions: 26" x 21" x 4"

• Durable pleated media design maximizes surface area for longer service life

• Electrostatically charged fibers enhance particle capture efficiency

• Recommended replacement cycle: every 6 to 12 months under typical residential use

Whether you're maintaining a Lennox air cleaner or upgrading from standard filters, the X6667 offers dependable performance and improved indoor comfort for your home or office.

Available now at Beenimax.