The Hydroflow S38 is used in steam boilers, steam ovens, steam rooms, humidifiers and evaporators. Fitting one S38 protects these appliances from limescale build-up and removes the existing limescale too. A special feature is that the S38 is fully encapsulated to protect the model from ingress of steam. The S38 fits around the pipe, is suitable for all types of pipe material and works independent of flow rate. The S38 can be also used for management of algae and bacteria problems and for improving filtration, through flocculation in small household aquariums, and terrapin tanks.