Boneco Demineralization Granule Refills， 1 Box[Product Information]- Enter your model numberto make sure this fits.
- Easy replacement of the granules of demineralization cartridge 7531
- For water mist without minerals or limescale
- 3 Packs of Granules per Box - Enough for 3 granules changes
- Replace granules every 2 – 3 months， or more frequently in areas with hard water
- Use: for all BONECO ultrasonic humidifiers except from U7146 Travel
- Enough for 3 granules changes" to "3 Packs of Granules per Box - Enough for 3 granules changes
