Cobalt Accu-Thermal Heater 300 W (Glass)
The all new Cobalt Aquatics ACCU-Thermal fully submersible heater features an easy-to-set thermostat with an ON/OFF indicator light. The unit is equipped with a Triac that turns the heater on and off at lower voltage to extend its life and improve reliability. The heater has been computer-tested and maintains accuracy within +/-2 degrees F.
The heater body is made of borosilicate glass, offering superior heat and shock resistance. It surrounds a high-quality ceramic heat radiator that ensures even and efficient heat distribution from the heating elements.
Designed for use in both freshwater and saltwater aquariums, this 300 W model provides consistent temperature control. Available in 25 to 300 watt sizes.
| Feature | Specification |
|---|---|
| Heating Power | 300 W |
| Material | Borosilicate Glass |
| Thermostat Accuracy | ±2°F |
| Heating Element | Ceramic Heat Radiator |
| Usage | Freshwater and Saltwater Aquariums |
| Warranty | 3 Years |
FAQ
What is the accuracy of the thermostat?
The thermostat is computer-tested and accurate to within ±2 degrees F.
Is this heater suitable for saltwater aquariums?
Yes, this heater is designed for use in both freshwater and saltwater aquariums.
What material is the heater body made of?
The heater body is made of borosilicate glass for superior heat and shock resistance.
Diana Greene –
The heater has been very reliable in maintaining stable water temperature. The glass body is sturdy and the ceramic radiator distributes heat evenly. Works well in my 55-gallon saltwater tank. No issues with overheating or fluctuations.
Heather Lewis –
I’ve used this for over a year in my freshwater tank. The thermostat stays accurate and the ON/OFF light is easy to monitor. A little heavier than expected, but the glass construction feels solid and safe.
Victoria Duncan –
Great performance in maintaining consistent temperature. The heater doesn’t overheat and the glass is resistant to thermal shock. Works perfectly with my reef tank setup.