Rheem 21x21x4.5
Aftermarket Replacement by Accumulair
$42.40
SKU: DPFU21X21X5M8
21x21x4.5 (20.75 x 20.75 x 4.38)
- Great for reducing airborne particles such as dust, pollen, mold spores, tobacco smoke, pet dander, and particles that carry viruses.
- Superior frame strength utilizing double-wall construction and die-cut fingers.
- High-efficiency filter media collects small dust particles before they can collect on your coils.
- Lasts up to 6 months!
What is MERV?