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Buy from our Aquarium Store you will get two extra 2pcs 10*6*3cm  nano cleaning sponges as gift!!! 

Features:

It can ensure the output of heat and keep the water temperature inside the tank steady.
Temperature indicating scale can be adjusted between 20~34℃(68~93°F).
Totally submersible, waterproof double insulation, durable and safe design.
Power indicator, ensures safe operation.
Can automatically adjust the temperature, good for fish in the aquarium.

Specifications:

Color: Black
Material: Glass  
Plug: EU Plug / US Plug
Wattage: 25W / 50W / 100W / 200W / 300W (Optional)
Voltage: 220-240V / 110-120v
Frequency: 50/60HZ
Temperature Range: 20~34℃ / 68~93°F
Item Length: 
25W: 20.5cm / 8in
50W: 21cm / 8.27in
100W: 25.5cm / 10in
200W: 29cm / 11.43in
300W: 29cm / 11.43in
Cable Length: Approx. 85cm / 33.5in 

Package Size: 

25W: 26.5 * 7 * 4cm / 10.4 * 2.76 * 1.57in (L * W * H)
50W: 26.5 * 7 * 4cm / 10.4 * 2.76 * 1.57in (L * W * H)
100W: 30.5 * 7 * 4cm / 12 * 2.76 * 1.57in (L * W * H) 
200W: 36.5 * 7 * 4cm / 14.4 * 2.76 * 1.57in (L * W * H)
300W: 36.5 * 7 * 4cm / 14.4 * 2.76 * 1.57in (L * W * H)

Note:

1. This item is only suitable for fresh water.
2. The heating rod must be totally immerged into water and no exposure is allowed.
3. When the indicator light is on, it is working.
4. Before cleaning the aquarium or heating rod, please turn off the power for 15-20 minutes to cool off the heating rod, or you will be burned.

Package Included:

1 * Heating Rod + 2 * Suction cup