THEO aquarium heater has all the necessary features for safe and precise temperature maintance of your aquarium. The exclusive technology and the high quality of the components guarantee a long lasting product.

• Shatter-proof glass tube.
• Shock resistant PTC heating element.
• Free positioning in aquarium with supplied suction cups.
• Self-limiting: : the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage.