25W heater with thermostat
Resun 25W fully submersible aquarium heater with a dial thermostat and indicator lamp, designed for freshwater…
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Find a productProduct description
This 25W heater suits keepers of small freshwater and marine aquariums with a capacity up to 20 L who need a simple way to set and hold water temperature. It is fully submersible, so it can sit directly in the tank water.
Why it matters
- Dial thermostat: a precise adjustment knob sets the target temperature, and a readable scale shows the chosen value.
- Indicator lamp: a built-in light shows whether the heater is currently switched on.
- Full submersion: the unit is designed to be fully immersed, which allows placement inside the tank.
- Suction cups included: the set comes with suction cups for fixing the heater to the aquarium wall.
Specifications
- Brand: Resun
- Model symbol: Resun grzalka 25W
- Power: 25 W
- Recommended aquarium capacity: up to 20 L
- Dimensions: 31 x 220 mm
- Weight: 0.23 kg
- Water type: freshwater and marine
- EAN: 6933163303302
What it works with
The heater is intended for small aquariums of up to 20 L in both freshwater and marine setups. Its 25 W output is matched to that tank size, so it is the right choice for compact tanks rather than larger systems.
Technical specification
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Frequently asked questions
It is designed for aquariums with a maximum capacity of 20 litres, so check your tank volume before buying.
Yes, the supplier states that it is suitable for both freshwater and marine aquariums.
A clear display and a precise adjustment knob make it easy to set the temperature, and a built-in indicator lamp shows whether the heater is currently on.
The package includes suction cups for attaching it to the aquarium wall. The heater is fully submersible.
It measures 31 x 220 mm and weighs 0.23 kg.
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