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Marineland Visi-Therm Aquarium Heaters
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Marineland Visi-Therm Submersible Aquarium Heaters

  • 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
  • cUL-approved for safe operation