Merv 11 Pleated Air Filter - 15" x 23 1/2" x 1" Quantity:12-pack The Pad and Frame Air

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

You may know them as washable air or even permanent air filters

from the air stream

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

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

Merv 11 Pleated Air Filter - 15" x 23 1/2" x 1" Quantity:12-pack The Pad and Frame AirAny 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.