Niederselters is a community within the munincipality of Selters and is the origin of seltzer water. The name Selters is derived from "seltrisa" or "salty water" and the area contains many mineral springs. The mineral water in Niederselters is also carbonated, adding to its appeal. The water was bottled in earthenware jugs and sold in restaurants and spas throughout the area. More information can be found here