Replacement Humidifier Filter Wick for Honeywell HAC-500 HCM-350 HCM-600 HCM-630 Humidifier Filter Wick Features: - Humidifier Filter Wick Compatible with Honeywell cool moisture evaporative humidifiers. - This Humidifier Filter Wick Removes minerals and pollutants from water. - Humidifier Filter Wick Reinforced for maximum efficiency and longer filter life. - Humidifier Filter Wick to keep your devices operating at peak performance. - Protec antimicrobial treatment helps prevent the growth and migration of mold, fungus, algae and other bacteria. Humidifier Filter Wick Specification: Fits Honeywell Models: HCM-1000 Series: HCM-1000C, HCM-1010a HCM-2000 Series: HCM-2000C, HCM-2001, HCM-2002, HCM-2020, HCM-2050, HCM-315T, HCM-350, HEV-312, HEV-355a HCM-500 Series: HCM-530, HCM-535, HCM-540, HCM-550, HCM-560, HCM-551a HCM-600 Series: HCM-630, HCM-631, HCM-635, HCM-645,HCM-650,HCM-710a HCM-300 Series: HCM-300T, HCM-315T, HCM-350a Enviracaire Model: ECM-250ia Fit Honeywell Cool Moisture Humidifier models 63-1508, ECM250i, DH835, HCM-53x, HCM-54x, HCM-300T, 310T, 315T, 330T, 350, 530, 535, 535-20, 540, 550-19, 550, 551, 560, 630, 631, 632, 632TG, 635, 640BW, 645, 646, 650, 710, HCM1000, HCM1000C, HCM1010, HCM1010C, HCM1020, HCM2000, HCM2000C, HCM2001, HCM2002, HCM2020, HCM2050, HCM2051, and HCM55019