Merv 8 Pleated Air Filter - 31" x 31" x 1"Any 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.

these can be purchased in any conceivable size

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

The filtering media consists of two layers of Stainless Steel roll formed baffles

Can be ordered in packages of 2 each only

UL/ULC listed

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

such as dust

This is designed to fit into 1" Return Air Grilles

oxidation and deterioration

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

The permanent frame is constructed of space-age plastics that are resistant to corrosion

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