Merv 11 Pleated Air Filter - 17 1/2" x 21 1/2" x 1" Quantity:12-pack åÊWe look forward to delivering

åÊWe look forward to delivering our American-made

The unit also includes a magnetic mounting bracket for optional installation inside air handlers

oxidation and deterioration

some just refer to them as electrostatic filters

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

Merv 11 Pleated Air Filter - 17 1/2" x 21 1/2" x 1" Quantity:12-pack åÊWe look forward to deliveringAny 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.