Merv 8 Pleated Air Filter - 9 5/8" x 17 5/8" x 1" Quantity:12-pack The permanent frame is constructed

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

In general

the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

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

UL/ULC listed

Merv 8 Pleated Air Filter - 9 5/8" x 17 5/8" x 1" Quantity:12-pack The permanent frame is constructedAny 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.