Niagara’s Hot Start showerhead is a temperature-controlled showerhead allowing users to turn on the shower at a full flow rate of 2.0 gpm. Once the water reaches 95° F, the flow is reduced to a trickle. When the user is set to use the shower, he or she can press the “resume” button on the showerhead to bring back the full stream. The Hot Start showerhead is only available as part of Niagara’s UHET water-saving kits.