GeneralAire 12758 (2-Pack) - #4001 RESERVEPro MERV 11 Expandable Air Filter

Keep your home’s air clean and your HVAC system running efficiently with the GeneralAire 12758 RESERVEPro expandable air filter 2-pack. Designed as a #4001 replacement, these filters feature MERV 11 filtration to help capture dust, pollen, pet dander, mold spores, and other airborne particles.

The expandable design creates a secure fit inside compatible filter cabinets, ensuring proper sealing and consistent airflow. Its pleated media provides extended surface area for longer service life and reliable performance. These filters help protect HVAC components, improve efficiency, and support a healthier indoor environment.

This convenient 2-pack delivers dependable filtration for year-round comfort and easy maintenance.

• MERV 11 rated filtration
• RESERVEPro #4001 replacement filter
• Expandable design for secure fit
• Includes 2 replacement filters
• Captures allergens and fine particles
• Supports HVAC efficiency