Genuine Honeywell® HAC-504AW Filter (3 Filters) - Protec PC-2 Value Pack

Genuine Honeywell® HAC-504AW Humidifier Filter

Honeywell® PC-1 ProTec™ Continuous Cleaning Cartridge - 1 Pack

Honeywell® PC-2 ProTec™ Continuous Cleaning Cartridge - 2 Pack