Merv 8 Pleated Air Filter - 17 1/2" x 18 1/2" x 1" Quantity:12-pack One way to overcome this

One way to overcome this problem is to increase the surface area of the filter media

if not you can measure it or check the HVAC unit and the owner‰۪s manual

Filtering inserts are shipped in an easily stored packet

Unlike some permanent custom air filters

oxidation and deterioration

Merv 8 Pleated Air Filter - 17 1/2" x 18 1/2" x 1" Quantity:12-pack One way to overcome thisAny 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.