New 50W Aquarium Heater, 7.8 x 1 x 1 in,1.5M/4.9ft cable 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 frame,better heat dissipation, 7.8 x 1 x 1 inch, saving more space for your fish. * Explosion Proof: 2mm thickened explosion proof glass, 33% thicker than the normal, safer for both human and animals. * Application: 50W water heater is suitable for 5 – 20 gallon tank, also suitable for both saltwater and freshwater. * Accurate Temperature: Temperatures from 68°F to 93°F (20°C - 34°C), come with a thermometer sticker, convenient to detect the water temperature without another pay.