These Sunbeam humidifier wick replacement filters fit Sunbeam models SCM1896, SCM1895 and SCM1866. They measure approximately 7 1/2 H x 5 1/4 ID x 7 1/4 OD x 1 inch Thick. Features an antimicrobial agent! Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home. For optimum performance, replace filter at the beginning of each season or every 2 months depending on use.