Marineland Visi-Therm Submersible Aquarium Heater, 200 Watts

HIGH QUALITY AND RELIABLE. Setting the temperature has never been easier, the easy click top dial now features calibrated marks, to confirm your setting from the top, that compliments the traditional side viewing sliding scale. They are the perfect choice for beginners and for longtime hobbyists alike who appreciate the ability to easily see and change temperature settings. The advanced mounting bracket provides three window positions to view the temperature display from multiple angles. No other aquarium heater is so easy to install, so easy to set, and so easy to use on a daily basis. CUL-approved for safe operation in both marine and freshwater aquariums. High Visibility Temp Setting with easy-to-view sliding scale tells the exact temperature setting and new top view shows the setting at the dial. Advanced mounting bracket, which securely attaches to glass and provides three window positions. Double-strength glass casing for extra durability. 25Watt - 5-gallon tank, 50Watt - 5–20-gallon tanks, 75Watt - 5–25-gallon tanks, 100Watt - 10–40-gallon tanks, 150Watt - 20–50-gallon tanks, 200Watt - 25–65-gallon tanks, 250Watt - 50+ gallon tanks, 300Watt - 55+ gallon tanks