Merv 8 Pleated Air Filter - 6" x 31" x 1" Quantity:12-pack This is designed to fit

This is designed to fit into 1" Return Air Grilles

Instead of face loading (particles captured on the outer surface of the filter)

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

so it can provide a lifetime of dependable service

Merv 8 Pleated Air Filter - 6" x 31" x 1" Quantity:12-pack This is designed to fitAny 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.