Practical Pleated Air Filter (2-Pack) - 21 3/4" x 23 1/4" x 5" Quantity:Default In general

In general

We can make custom air filters in heights and widths ranking from 6 inches to 36 7/8 inches with increments in 8ths of an inch

To order washable electrostatic custom air filters you just need to know the size of the current air filter

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

degrade and restrict air flow

Practical Pleated Air Filter (2-Pack) - 21 3/4" x 23 1/4" x 5" Quantity:Default In generalYes, 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