The 41F is a Non-Ducted Charcoal Replacement Filter for Broan 41000, 46000, ACS, F40000, RL6200, RL6200FH, SL6200H and SM6500R Series Range Hoods. An aluminum mesh side captures grease, while the charcoal pad on the reverse side of filter removes smoke and odors. Replace the filter every 3 to 6 months for optimal operation. Color: Silver.