American Standard 21x21.5x5
Aftermarket Replacement by Accumulair
American Standard 21x21.5x5 Air Filter
Actual Size: 20.1 x 21.1 x 5
Replaces American Standard Models:
- Pre-applied gasketing on the assembled filter prevents air by-pass.
- Great for reducing airborne particles such as dust, pollen, mold spores, tobacco smoke, pet dander, and particles that carry viruses.
- High-efficiency filter media collects small dust particles before they can collect on your coils.
- Superior frame strength utilizing double-wall construction and die-cut fingers.
- Lasts up to 6 Months!