Aquael FLOW Inline Aquarium Heater – 300W & 500W
300W
$114.99
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Free up space inside your aquarium by moving heating to the outlet hose of a compatible external canister filter. Aquael FLOW distributes warmed water through the filter return and displays both the aquarium’s current temperature and your selected setting.
Choose your heater
| Model | Power | SKU |
|---|---|---|
| FLOW 300 | 300 watts | AEFH300 |
| FLOW 500 | 500 watts | AEFH500 |
Features and specifications
- External inline installation on the filter outlet hose
- Compatible hose sizes: 16/22 mm and 19/25 mm
- Temperature setting range: 20–33°C (68–91.4°F)
- Stated temperature accuracy: ±0.5°C
- One Touch temperature adjustment and LED display
- Smart Heating System adjusts heating output to conditions
- Electronic sensors shut heating off when water flow stops
- Suitable for freshwater and saltwater systems
Before ordering
Check your filter’s hose dimensions and the manufacturer’s installation requirements. Choose wattage based on water volume, room temperature and the required temperature rise. Maintain water flow during operation and use an independent aquarium thermometer to monitor temperature.
Complete the setup
Pair with a compatible canister filter, an aquarium thermometer and the correct hose fittings. Browse Heating and Cooling for temperature-management accessories.