Merv 11 Pleated Air Filter - 29 1/4" x 31 1/2" x 2" Quantity:12-pack the A+2000 uses no foam

the A+2000 uses no foam that may clog

so it can provide a lifetime of dependable service

Filtering inserts are anti-microbial and are more efficient in capturing particles

And there are no metal parts that could lead to corrosion or oxidation within the filter

Either way

Merv 11 Pleated Air Filter - 29 1/4" x 31 1/2" x 2" Quantity:12-pack the A+2000 uses no foamAny 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.