Practical Pleated Air Filter (2-Pack) - 20" x 23 1/2" x 5" Quantity:Default UL/ULC listed

UL/ULC listed

with each stage capturing progressively smaller particles inside the filter

such as dust

To learn more

mold and other fungi

Practical Pleated Air Filter (2-Pack) - 20" x 23 1/2" x 5" Quantity:Default UL/ULC listedYes, we even have the odd sizes! The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters. In general, the more efficient a filter is at removing particles, the greater it's resistance to airflow, and the greater the pressure drop it creates. One way to overcome this problem is to increase the surface area of the filter media. The "Practical Pleat" contains over 500% greater surface