The Aquael Flow Heater 2.0 (300W) is an external aquarium heater designed for tanks between 100 and 600 liters. It features precise temperature control (20°C to 33°C), Smart Heating System (SHS) for energy efficiency, safety shut-off, and compatibility with 16/22 mm or 19/25 mm hoses, making it a reliable and space-saving solution for freshwater and marine aquariums. 

The complete heater must be hung vertically, please read the detailed description below.