CORISRX 150w/300w/500w in-Line External Heater Aquarium Heater – 150/300/500 WATT 1/2″,5/8″ (Applied to Both Sizes) (Black 500 Watt 5/8″,1/2″ Hose)

Applied sizes: 5/8″(16/22mm), 1/2″(12/16mm) ,can be applied to both sizes Features: 1. Thermal spraying glass, speed up the heating process, higher efficiency. 2. External design, easy to install and doesn’t occupy space in the tank. 3. Two sensors to exam the temperatures of water inlet and outlet. 4. Auto power off safety system when – Temperature is over 36℃ – Temperature is 3℃ more than setting temperature – Difference between two sensors is over 5℃ How to use: 1. Connect the water inlet at the downside of the heater and water outlet at the topside of the heater. 2. Press the button to set the temperature. 3. Please unplug the heater before put your hand inside the tank. 4. External heater is only for indoor use and only use outside the tank. 5. Warranty only applies to the heater, not to the animals, plants or equipments of the tank. Accuracy ±1°C / Temperature range 20~35°C

Power: 500W, Applied sizes: 5/8″(16/22mm), 1/2″(12/16mm), can be applied to both sizes
The in-line external heater is designed for vertical use in most aquarium applications involving water hose of the specified diameter.
The most common application is for use with canister filter, however the External Heater is easily adapted for use in almost any situation where heated aquarium water is required, such as with wet/dry sump pumps.
The External Heater is completely safe and UL Listed.
There is no danger of damage if the External Heater is left running dry for short periods as the ISTA External Heater will switch itself off in that event. The External Heater heats with high efficiency by means of an internal heat pump system that avoids temperature variations. For use in freshwater and marine aquariums. Fits most canister filters.