Inline Heater 300 Watt With 5/8" Hose Connections - Hydor
First and unique external heater for aquariums with the exclusive PTC (Positive Thermal Coefficient) technology. The self-limiting PTC heating element guarantees maximum safety against any risk of overheating. The exclusive technology and the high quality of the components guarantee a long lasting product. Suitable for canister filters and sump tanks.
The Hydor External Thermal Heater In-Line Aquarium Heater is suitable for all canister filters with 5/8" flexible hosing (or 1/2" flexible hosing pending which size selected to purchase).
No danger of damage if unit is run dry for short period as the External Thermal Heater will switch itself off before overheating.
- The Hydor External Thermal Heater fits in line with your filter tubing.
- Reliable, Simple to Use, Extremely Accurate.
Ideal for tropical fish breeding situations. Temperature control is adjustable between 66-90 deg F. Heats with high efficiency and designed to avoid temperature variations caused by poor water circulation. The Hydor external thermal In-Line heater uses the advanced PTC system, which is a special polymer sheet, silk-screened with heating ink (like your car's windshield defroster) instead of metal coils. This state-of-the-art system allows the unit to be left running without water for a short time with no damage. For indoor, in-line use only, the Hydor external heater has an adjustable heating control, and a hanging hook for easy placement outside your aquarium. Requires tubing.