FEDOUR 50W 100W 300W Submersible Aquarium Heater - Adjustable Glass Fish Tank Water Heater for Freshwater & Saltwater Tanks (100W) | Perfect for Tropical Fish, Betta Tanks & Marine Aquariums

FEDOUR Adjustable Aquarium Heater 50W 100W 300W, for 5-70gallon Fish and Turtle Tank What will you get All accessories 1pc fish tank heater 3pcs strong suction cup, effectively protect the heater from slipping. 1pc stick-on thermometer Stick-on Thermometer Just stick the thermometer on the outside of the tank, below the water surface, and then you can easily read the water temperature. Stable and Safe Structure Details of the Aquarium Heater Automatic Constant Temperature: After heating to the set temperature, the heater will automatically stop heating. When the temperature is detected to be lower than the set temperature, the heater will automatically start heating and maintain a constant water temperature. Explosion-proof Design Tight seal on top The top of the fish heater is well sealed and does not leak water. Thickened Glass Thickened quartz glass, explosion-proof. Crash-proof Quartz Cotton Shock-proof cotton pad Bottom Protective Cover Collision prevention Installation Precautions The fish tank heater can be installed horizontally and vertically. The aquarium heater must be fully submerged in water. The power cord should be placed in a U-shape to prevent water from flowing back into the socket. When the tank needs a water change, disconnect the heater from the power supply and leave it to cool for 15 minutes or more before removing it. Applications

【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.

【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.