Hydor ETH 300 In-Line aquarium Heater 300W


Works fine, no longer needed.


ETH Inline Heater, 5/8", 300W.

External Thermal Heater.

Fits 5/8" i.d. hose.
First and unique external heater for aquariums with the exclusive PTC (Positive Thermal Coefficient) technology.
Easy to connect to any canister filter.
The self-limiting PTC heating element guarantees maximum safety against any risk of over-heating.
High precision electronic temperature control with signal light.
Built with solid self-extinguishing materials for extra safety.

Golden Library