Aqua One TH Titanium Heater series is constructed from corrosion resistant titanium. The external thermostat controller allows you to maintain your desired temperature without disrupting your aquatic inhabitants.Features & Benefits:Made from corrosion resistant titaniumExternal thermostat controller allows you to accurately maintain your desired temperatureAdjustable temperature range between 14°C - 34°CLED light indicator will display when the heater is activeWhen the water reaches the set ..