American Standard 21x27x1 MERV 11 Aftermarket Replacement Filter
- American Standard 21x27x1 MERV 11 Aftermarket Replacement Filter
- Actual Size 20.63x26.26x0.75"
- Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog.
- Ideal for standard and residential commercial use
- Designed to last 180 days. Replace regularly for optimum performance.
- Free shipping on all orders!