Important Tips:
1. Not for use with screw top bottle
2. Uses in different occasion, the white inner inset, air-tight foam, dust-cover could be taken off as you need.
3. If you put the caps on probe type dispenser, the caps would be stick with the probe instead of float around in the water.
4. If you use it in the water bottle on the top rack or with water pump, you can take off the inner caps for reusable.