Practical Pleated Air Filter (2-Pack) - 21 1/2" x 23 1/2" x 5"Yes, 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

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

Then simply add that information to our easy to use order form above

please click HERE to read detailed brochure (Adobe Reader PDF file)

In general

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

such as dust

This is designed to fit into 1" Return Air Grilles

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

we even have the odd sizes

from the air stream

the more efficient a filter is at removing particles

Instead of face loading (particles captured on the outer surface of the filter)