RH-300 300W

The high-output Resun RH-300 300W submersible glass heater is the ideal solution for large aquariums up to 300 liters. Its heavy-duty borosilicate glass tube provides superior heat transfer and mechanical durability. The top selection knob allows easy target temperature setup, and the highly sensitive mechanical thermostat cuts power once the water reaches the set temperature, ensuring safety.

Key Features

• High Output 300W Power: Heavy-duty heating element ideal for large aquariums or setups in cold rooms.
• Thick Borosilicate Glass: Resilient, heat-conductive glass casing built to sustain high thermal loads safely.
• Bright Red Status LED: Easy-to-see indicator light showing active operation even from a distance.
• Tip Bumper Cap Protection: Protective plastic bumper prevents fractures from large fish or rock decorations.