Merv 11 Pleated Air Filter - 21 3/8" x 21 1/2" x 1" Quantity:12-pack the A+2000 uses stage loading

the A+2000 uses stage loading

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

Can be ordered in packages of 2 each only

the more efficient a filter is at removing particles

Because we specialize in custom air filters

Merv 11 Pleated Air Filter - 21 3/8" x 21 1/2" x 1" Quantity:12-pack the A+2000 uses stage loadingAny 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.