Merv 11 Pleated Air Filter - 29 1/4" x 31 5/8" x 2" Quantity:12-pack This is a 5" MERV

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

To find the size the old unit should have sizing information printed on it

oxidation and deterioration

They are constructed from 304 Stainless Steel material formed to exact specifications

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

Merv 11 Pleated Air Filter - 29 1/4" x 31 5/8" x 2" Quantity:12-pack This is a 5" MERVAny 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.