Merv 8 Pleated Air Filter - 21 1/4" x 22" x 1" Quantity:12-pack with each stage capturing progressively

with each stage capturing progressively smaller particles inside the filter

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

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

And there are no metal parts that could lead to corrosion or oxidation within the filter

Merv 8 Pleated Air Filter - 21 1/4" x 22" x 1" Quantity:12-pack with each stage capturing progressivelyAny 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.