The Thermocontrol-E (125 Watt) Aquarium Heater by EHEIM is an essential tool for maintaining the ideal temperature of your 50-gallon fish tank. With its submersible design, it ensures even heat distribution and is compatible with a variety of aquarium types. Made by trusted brand EHEIM, this heater is reliable and efficient.

It is important to note that the Thermocontrol-E Aquarium Heater has been previously used, but it is in good working condition. The GTIN number is 720686005174. With its easy-to-use controls and durable construction, this heater will keep your fish happy and healthy.