These Touch Point humidifier wick replacement filters fit Touch Point models S120E-A and S120E-C. They measure approximately 7 3/4 H x 7 1/2 ID x 9 1/2 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.