This 300w Titanium Heater Element is used on the external MX-1021B controller as spare or second element. The heating element may also be connected to a temperature controller but should be done so by a certified electrician. The heater plug must not be connect directly into a mains outlet as it is shaped to connect into the MX-1021B controller socket.
This titanium heater element is suitable for freshwater and salt water aquariums and Includes 2 suction cup holders.
Warning! This element has no temperature control/sensor and cannot be used without a controller.
The 300W Stainless Steel can be found here