The first shatter-proof heater thanks to the peculiar glass tube.
THEO's are shock resistant thanks to the PTC heating element and the shatterproof glass tube.
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.
ETH 300 watt In-line Heater
No danger of damage if the equipment is left running without water for a short period of time.
Patented heating element made with the exclusive PTC system. The traditional metal resistor coils have been replaced by a special polymer sheet, silk-screened with heating ink.
Setting of temperature controlled by an electronic circuit with indicator light.
Connectors suitable for any flexible pipe of all external filters.
Hydor Heaters @ Fish Tanks Direct
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