UYISMML Inline External Heater for Aquarium Fish Tank 300W/500W in-Line Canister Filter with LCD Display Overheating Protection Adjustable (B：500W)

The External Heater must be used in a vertical manner for correct operation. The most common application is for use with canister filter, however the ISTA External Heater is easily adapted for use in almost any situation where heated aquarium water is required, such as with wet/dry sump pumps.

Voltage: 220-240V 50Hz, Adjustable temperature?between 20 to 35 degree. The External Heater is completely safe and UL Listed. This Aquarium External Heater is specially designed for canister filter. Leading temperature control system, precise overheat protection, provides a warm, safe and comfortable living environment for your beloved fish!

For different Canister Filter needs, we have prepared 2 different sizes of heads in the box, 2 x17mm adatper for inner diameter 16mm water hose. 2 x 22mm adapter for inner diameter 20mm water hose.

There is no danger of damage if the External Heater is left running dry for short periods as the 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.re.

Note: Please connect the heater on the ourflow tube of the filter bucket Direction of the arrow on the heater should be same with the direction of water flow insid.