Practical Pleated Air Filter (2-Pack) - 21 3/4" x 23 3/4" 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

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

Finally they are factory made so you don‰۪t have to deal with the hassle of trying to cut and size your custom air filters and they come with a full warranty

In general

with each stage capturing progressively smaller particles inside the filter

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

You may know them as washable air or even permanent air filters

the A+2000 uses stage loading

We look forward to delivering our American-made

Eliminates Filter Bypass

and the greater the pressure drop it creates

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

One way to overcome this problem is to increase the surface area of the filter media