D'Addario Two-Way Humidification Replacement 12 pack

D'Addario Guitar Humidifier Packs-Two-Way Humidification System Conditioning Packets-12 Maintain Replacement Packets (PW-HPRP-12)

D'Addario Accessories Guitar Humidifier System - Humidipak Maintain Kit - Automatic Humidity Control System - Maintenance-Free, Two-Way Humidity Control System For Guitars

D'Addario Accessories D'Addario Guitar Humidifier Packs - Two-Way Humidification System Conditioning Packets - For Restoring to Proper Guitar Humidification Level - 3 Restore Conditioning Packets