Merv 13 Pleated Air Filter - 21" x 23" x 1"Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop, and long service life which reduces HVAC equipment maintenance and energy costs. 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.

these can be purchased in any conceivable size

The secret behind the A+2000‰۪s custom air filters performance is the patented stage loading/peak and valley design

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

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

Some of the other benefits of A+2000 custom air filters include the following

This design enables A+2000 custom air filters to maintain performance over the years

such as dust

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

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

Because we specialize in custom air filters

some just refer to them as electrostatic filters

the A+2000 uses no foam that may clog