Merv 13 Pleated Air Filter - 29 1/2" x 31 3/4" x 2" Quantity:12-pack the A+2000 uses stage loading

the A+2000 uses stage loading

Either way

we even have the odd sizes

They are easy to install with custom air filters made to the sizes that you specify

In general

Merv 13 Pleated Air Filter - 29 1/2" x 31 3/4" x 2" 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.