Feature *Anti-Explosion* The main body of the heater is made of Quartz Glass, which is high temperature resistance, anti-corrosion, anti-explosion. With dual Isolation Design, as the glass sealed the internal structure from water that it is harmless for the aquatic organisms and fish without leakage when fully submerged. Adaptable in both freshwater and sea water. *Fast Heating* With nickel chromium heating wire, water temperature rise rapidly due to the good heating effect and thermal conductivity. When completed, temperature will keep constant automatically. Sensitive and reliable thermostat maintains uniform temperature, no temperature fluctuations. *Adjustable Temperature* Temperature is adjustable with a high accuracy that it can be flexible to meet varied submersible environment demands（20-34℃/68-93℉）. Fully submersible heaters with two suction cups work in any position (horizontal or vertical) to provide optimum aquarium water temperature. *Safe Guard* There will be a cover guard accompanied with the heater where fish won’t be burned from. Automatic shut off when the temperature is reached. Specification Type: Aquarium / Submersible Heater Material: Quartz Glass & Nickel Chromium Heating Wire Color: Black IP Rate： IPX8 Adjust Temperature： 20-34℃/68-93℉ Power Available: 300w

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