This fits your .

This Honeywell Demineralization Cartridge Q is best utilized with the Honeywell HUT-200 Cool Humidifier. These particular filters can go a very long way in keeping your humidifier free of mineral deposits. They will also effectively prevent white dust from accumulating and interfering with your machine of choice. It is recommended that you replace your demineralization cartridge every 20-30 fillings for the very best results. Each package comes with 2 cartridge Q humidifier filters. Establish an unrivaled breathing experience for you and your loved ones with Honeywell and their second to none series of Filters. Replacement Filter Q Helps neutralize minerals in the water Includes 2 filter Helps prevent 'White Dust For best results replace every 20-30 fillings For use with: HUT-200, HUT-220, and other HUT-200 series Easy-To-Care Mist Humidifiers. Additional Info: The Honeywell Demineralization Cartridge is made specifically for use with the Honeywell Easy-To-Care Cool Mist Ultrasonic HUT-200 and HUT-200 Series Humidifiers. This cartridge lasts up to 30 fillings and helps prevent 'white dust' caused by hard water. The package comes with 2 cartridges.

Honeywell HDC-200 Humidifier Filter Demineralization Cartridge (2 Pack) - B007KDZIDO