The Titanium Finnex Heaters are corrosion-resistant, extending the life exponentially from saltwater damage. Virtually unbreakable, especially in comparison with the standard glass aquarium, these tube are built to last. The ultra heating titanium further provides a stable temperature environment for your aquarium lives and eliminates temperature swings that put stress on the aquarist's live stock. This titanium heaters are suited for both use in fresh and salt water aquarium. Will work well with other controllers accepting 3 prong heating elements. The titanium heating element is also wrapped with a protective heater guard to prevent one's aquatic inhabitants as well as surrounding equipment. The new TH-S Deluxe Titanium Series also includes suction cups to allow users to secure the titanium element in preferred locations.