16.5x21x4 (Actual Size) MERV 11 Furnace Filter
- 16.5x21x4 (Actual Size) MERV 11 Furnace Filter filters made and manufactured by FilterBuy
- Actual Size 16.5x21x4"
- 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 90 days. Replace regularly for optimum performance.
- Free shipping on all orders!