16.5x21x4 (Actual Size) MERV 8 Furnace Filter
- 16.5x21x4 (Actual Size) MERV 8 Furnace Filter filters made and manufactured by FilterBuy
- Actual Size 16.5x21x4"
- Traps and blocks over 90% of pollen, dust mites, mold, larger dust particles, and more.
- Ideal for standard and residential commercial use
- Designed to last 90 days. Replace regularly for optimum performance.
- Free shipping on all orders!