Duraflow Filtration CF0308 4-Pack replacement carbon filters are made with premium activated carbon and are manufactured to OEM specifications. Compatible models for this model are: Broan: 99010123, 97007696, 97005687 Caloric: Gem: 88152 RF104 Maytag: 47001046 Whirlpool: 4341999, 4378581, Maycor: 47001076. Carbon filters typically last between 6-12 months.