Merv 11 Pleated Air Filter - 14" x 18" x 1" Quantity:12-pack Unlike some permanent custom air

Unlike some permanent custom air filters

Filtering inserts are anti-microbial and are more efficient in capturing particles

Filtering inserts are shipped in an easily stored packet

so it can provide a lifetime of dependable service

some just refer to them as electrostatic filters

Merv 11 Pleated Air Filter - 14" x 18" x 1" Quantity:12-pack Unlike some permanent custom 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.