Merv 8 Pleated Air Filter - 11 3/8" x 11 3/8" x 1" Quantity:12-pack some just refer to them

some just refer to them as electrostatic filters

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

built to last a lifetime

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

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

Merv 8 Pleated Air Filter - 11 3/8" x 11 3/8" x 1" Quantity:12-pack some just refer to themAny 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.