Aerostar 21 1/4x23 1/4x1 MERV 13 air filter
Pleated air filter with nominal size 21 1/4 x 23 1/4 x 1, designed to filter microscopic particles. Customers note good quality, easy installation, and effective filtration, with some size feedback
Highlights
- MERV 13 filtration
- easy installation
- furnace-compatible size
Pros
- good build quality
- easy to install and replace
- effective filtration for dust and allergens
- fits furnaces as described
- accurate size for many installations
Cons
- size feedback mixed
Best For
Features
- Nominal dimensions: 21 1/4 x 23 1/4 x 1 inches
- Filter media designed to trap lint, dust mites, spores, pollen, pet dander
- Comparable performance to MPR 1500–1900 and Honeywell Allergen Elite FPR 10