External inline heater 500w

ISTA External Inline Aquarium Heater 500w for filter flow rates of 500 to 1200 litres per hour and tanks between 250 and 400 litres.

1. Thermal spray heating-element glass for faster heating and higher efficiency.
2. External design, easy to install and doesn’t occupy space in the tank.
3. Splice into the output line of your canister filter (canister filter not included)
4. Two sensors to measure the water inlet and outlet temperatures.
5. Automatically shuts off under the following conditions:
   • Temperature is over 36℃
   • Temperature is 3℃ more than the set temperature.
   • Difference between the two sensors is over 5℃
6. When the water temperature is less than 3℃ of the set temperature an indicator light flashes