The Aqua Medic Titanium Heater PRO is a powerful, unregulated titanium heater designed for large aquariums with a volume of up to 9,000 liters. Engineered for professional use in both freshwater and marine environments, it offers outstanding durability and reliability. Its high-quality, corrosion-resistant titanium housing makes it especially suitable for saltwater aquariums. The heater is unbreakable and built to last, making it ideal for demanding applications.Aqua Medic Titanium Heater PRO+ available in three power levels: 1000 W, 2000 W, and 3000 W+ suitable for aquariums up to 3,000 liters+ durable titanium housing - perfect for saltwater use+ unregulated heating element - requires external temperature controller+ with run-dry protection+ low maintenance, highly reliableNote: The Titanium Heater PRO does not include an internal thermostat and must be used with an external temperature controller (not included).Aqua Medic Titanium Heater PRO 1000 Wfor aquariums from 2,000 - 3,000 lp