Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of components guarantee a long lasting product.
High resistance – the first shatter proof heater
Position vertical, horizontal and completely submerged
Graduated scale for precise maintenance of set temperature
No damage in case of running dry