Orlushy Submersible Aquarium Heater300W Adjustable Fish Tahk Heater with 2 Suction Cups Free Suitable for Marine Saltwater and Freshwater

300W aquarium heater is suitable for 40 to 55 gallons aquariums, Length-11 inch, voltage 110-120V, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart. It shows an area to adjust the temperature. It's not exactly accurate but it turns easy and can be adjusted at small intervals. Explosion Proof: 2mm thickened quartz glass, can be used in fresh water and salt water aquariums, easy to hide in the tank. Precise temperature dial from 68 to 89°F allows for complete control of aquatic climate within a 1-degree difference. Adjustable Aquarium Fish Tank Water Heater Sensitive and reliable thermostat maintains uniform temperature. Automatic shut off when the temperature is reached