Merv 11 Pleated Air Filter - 11 1/2" x 29 1/4" x 1" Quantity:12-pack the more efficient a filter

the more efficient a filter is at removing particles

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

To order washable electrostatic custom air filters you just need to know the size of the current air filter

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

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

Merv 11 Pleated Air Filter - 11 1/2" x 29 1/4" x 1" Quantity:12-pack the more efficient a filterAny 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.