White Rodgers Electronic Air Cleaner Charcoal Filter w/ Clip

White-Rodgers activated carbon impregnated foam filter, includes mounting clip. The carbon absorbs odors and fumes, replace once or twice a a year. The filter measures 13" x 15-1/4" x 7/16". This carbon postfilter will show premature dust if there are problems with your air cleaner. Or provide proof that the air leaving the cells is dust free. The filter will show a strip of dust if there is a missing ionizing wire. The filter will also reveal if your cells need more frequent cleaning, as heavily loaded cells will start to allow dust to pass. Used with SST1400-100,14C27S-010 Replaces F825-0475