Best Visi Therm Aquarium Heaters

Visi-Therm Submersible Heaters from Marineland feature direct-set control, guaranteed durability, and certified accuracy to within one degree. 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. FEATURES & BENEFITS * 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. * Click-set temperature dial to accurately set temperature to +/- 1 degree Fahrenheit with every click. * Advanced mounting bracket, which securely attaches to glass and provides three window positions to view temperature display from multiple angles. * Triac Equipped Thermostat which switches heater on and off with lower voltage for superior reliability and performance. * New,mesh heating element with mica core, coupled with epoxy fill ensures the most efficient heat transfer and eliminates rattling coils. * LED on/off light to indicate clearly when the heater is operating. * 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