Merv 11 Pleated Air Filter - 16 3/8" x 21" 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 "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

PACK of 6 pads for Pad and Frame Air Filters

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

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

such as dust

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

from the air stream

the A+2000 uses stage loading

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

Filtering inserts are shipped in an easily stored packet

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