Fluval M300 Submersible Heater 300 W, up to 80 US Gal / 300 L

The largest submersible heater in Fluval's M-series, rated for tanks up to 80 US gallons. Suited to larger community and cichlid tanks where a single high-wattage heater is more practical and less visually intrusive than running two smaller units to reach the same heating capacity.