The Interpet Delta Therm 100 watt aquarium heater is a reliable and efficient submersible heater designed for aquariums with a capacity of up to 100 litres. With a power consumption of 100 watts, this heater is perfect for maintaining the optimal water temperature in your fish tank to create a comfortable environment for your aquatic pets. The Interpet brand is known for its quality and durability, making this product a trusted choice for aquarium enthusiasts.