Inline heater holder in different lengths.
Max length heating: measure the glass part. Or see the list
Installation: Insert into drain hose from filter or pump, the holder must be upright, the lower connection is the supply and the upper connection is the drain. The holder should be below the water level of the aquarium.
Start-up: Start the filter or pump and let it run for 30 minutes, check carefully that the filter and holder are free of air. When you are sure all the air is out you can plug in the heater.
Install the power cable so that a drip loop is formed.
Keep a close eye on the temperature in the aquarium for a few days.
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