FEDOUR Aquarium Heater 50W 100W 300W, Submersible Glass Fish Tank Heater for Fresh and Salt Water (100W)

【Specification】FEDOUR upgraded aquarium heater, Power: 100W, suitable for 10-30gallon fish and turtle tank, length: 9.5in, can be used in fresh water and sea water.

【Safe heater】With multiple heating wires, this fish tank heater heats more evenly, stably, and safely than a spiral single coil heater. Using 2mm thick quartz glass and wrapping the heating wire with quartz tubes, explosion-proof and very safe.

【Adjustable Temperature】Rotate the knob to set the desired temperature, and the temperature adjustment range of the water heater is 68-93 ℉/20-34 ℃. After the setup is completed, the heater starts heating and the red indicator light will light up.

【Automatic Temperature Control】When the submersible heater detects that the water temperature has reached the set temperature, it will automatically turn off, and once the heater detects that the temperature is lower than the set temperature, it will automatically start heating to keep the temperature constant.

【All accessories】1pc aquarium heater, 3pcs suction cups and 1pc stick-on thermometer. The strong suction cup can effectively prevent the fish heater from slipping, and we provide an additional one for replacement. The stick-on thermometer allows you to easily check the water temperature at any time.

【Protecting Fish Safety】Even if continuous heating is required, this aquarium heater will heat for a period of time and then pause for a few minutes (the indicator light will turn off during the pause), gradually reaching the set temperature. This design helps keep water temperature from fluctuating too much, preventing fish from feeling uncomfortable and protecting their safety.

【Warranty】We offer a 12-month warranty on this product, if you have any questions, please feel free to contact us. Our after-sales service team will resolve your issue within 24 hours.