The protective ring for the  water dispenser  is plastic and is installed on the neck of the ceramic dispenser, after which a bottle of drinking water is installed.

The ring protects the ceramic dispenser from damage and micro-cracks and the polycarbonate bottle from scratches. It also prevents unwanted leaks between the dispenser neck and the 19L bottle. 

The ring also smooths out unevenness on the surface of the ceramic dispenser neck. It is installed on the neck. Before installation, it is recommended to warm the ring in warm water, so it will take the shape of the neck and will sit more tightly.Before installation, it is recommended to warm the ring in warm water, so it will take the shape of the neck and will sit tighter.