Merv 11 Pleated Air Filter - 6" x 13 5/8" x 1" Quantity:12-pack these can be purchased in

these can be purchased in any conceivable size

You never have to hassle with disposable filters that will end up in a landfill again

The A+2000 line is easy to maintain with no need to buy oils or adhesives to enhance effectiveness

some just refer to them as electrostatic filters

In general

Merv 11 Pleated Air Filter - 6" x 13 5/8" x 1" Quantity:12-pack these can be purchased inAny 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.