Hitop 50W/100W/300W Adjustable Aquarium Heater, Submersible Glass Water Heater For 5 – 70 Gallon Fish Tank (50W For 5-15 Gallon)

50W Aquarium Heater 7.8 x 1 x 1 in1.5M/4.9ft cable This heater is simple and beautiful in appearance placed in your aquariumunobtrusive and will not destroy the fish tank landscape. You and your fish will like it. We adopted 2mm thickened quartz glass much safer for both human and animals. And it will turn off automatically when reaches temperature you set without overheating. For the products we have been keeping improving. Please contact us when there is any question or suggestion in use we offer the excellent service and think highly of every user’s opinions. Features: 1. Good in maintain temp. 2. Both suitable for freshwater and saltwater. 3. Complete accessories: An extra stick-on thermometer(just peel and stick) and 2 extra suction cups are provided for spare(total 3). 4. Better construction: Adopt 8-slot multi-branched heating wire ceramic framebetter heat dissipation 7.8 x 1 x 1 inch saving more space for your fish. Cautions: 1. The heating part must be fully submerged in the water to avoid dry-burningotherwise will cause damage to heater. 2. Please clean the heater regularly to remove dirt from the heating tube and keep it in good working condition. 3. It is forbidden to pull the heater adjustment knob outwards. 4. If you need to change the water please turn off the power let the heater cool down for more than 20 minutes wait for it to cool down completely before taking it out.