Practical Pleated Air Filter (2-Pack) - 6" x 20" x 5" Quantity:Default They are easy to install

They are easy to install with custom air filters made to the sizes that you specify

The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters

Unlike some permanent custom air filters

the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

And there are no metal parts that could lead to corrosion or oxidation within the filter

Practical Pleated Air Filter (2-Pack) - 6" x 20" x 5" Quantity:Default They are easy to installYes, 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