Merv 11 Pleated Air Filter - 19" x 22" x 2" Quantity:12-pack You may know them as

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

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

so it can provide a lifetime of dependable service

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

28X Increased Efficiency

Merv 11 Pleated Air Filter - 19" x 22" x 2" Quantity:12-pack You may know them asAny 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.