Filterbuy 21x21x1 Air Filter MERV 11 (6-Pack) - Made in USA
MERV 11 pleated air filters for furnaces, air conditioners, or heat pumps. Improves filtration of dust and allergens with 95% capture while maintaining airflow. One customer notes good quality and value for money
Highlights
- MERV 11 synthetic media
- Actual size close to 21x21 inches
- 6-pack for multiple filters
Pros
- MERV 11 filtration
- Electrostatic pleated media
- Universal compatibility
- Made in USA
- 6-pack convenience
Cons
- Some customers report smaller size than advertised
- Airflow performance varies by user
Best For
Features
- Universal 21x21x1 replacement filter for furnaces, A/C, or heat pumps
- MERV 11 synthetic media captures allergens and pet dander with 95% dust capture
- Electrostatically charged with 14 pleats per foot, longer-lasting filtration
- Durable beverage board frames with dual wire backing for temperature resilience
- Made in the USA with industrial-grade, recyclable materials