Filterbuy 18x20x1 Air Filter, MERV 11 (6-Pack) — Made in USA
Electrostatic pleated air filters for furnaces, A/C, or heat pumps with MERV 11 media. Protects against dust and allergens. Customers note good quality and fit, with some sizing concerns
Highlights
- MERV 11 synthetic media
- Actual size 17.50 x 19.50 x 0.75
- 6-pack provides multiple replacements
Pros
- MERV 11 filtration for allergens
- Universal compatibility 18x20x1
- Electrostatic pleated design
- Made in USA
- Good build quality
Cons
- Some customers report smaller size than advertised
- Airflow performance may vary for some units
Best For
Features
- Universal 18x20x1 replacement filter for furnace, air conditioner, or heat pump
- MERV 11 filtration with electrostatically charged media captures dust and pet dander
- 14 pleats per foot for extended filtration life and 3x longer durability than fiberglass
- Easy installation with beverage board frames and dual wire backing for temperature resilience
- Made in USA using industrial-grade, recyclable materials
