The Trane FLR06453 IFD Filter Assembly is an original equipment replacement component supplied as a package of two collection cells for compatible Trane CleanEffects whole-house air filtration systems. It works by collecting airborne particles, including dust and debris, as air passes through the electronic air-cleaning system. This filter assembly supports improved indoor air quality... https://www.partshnc.com/trane-flr06453-filter-assembly-ifd-package-of-2