Tetratec HT Verwarmer - 300 W

• Tetra HT 300 aquarium regulator heater for an aquarium size of 300 – 450 litres. Easy to read and therefore very user-friendly temperature setting
• Temperature adjustment knob for selecting the desired water temperature in the range of 19 °C to 31 °C in increments of 0.5 °C
• Waterproof cap, i.e. fully immersible, secure attachment via two suction cups, extra thick (2 mm) heat-resistant and impact-resistant borosilicate glass tube
• Control light for the heating phase/electronic switch for maximum reliability and safety
• Double ceramic heating element for even heat conduction through the glass. Long power cord (1.6 m) for easy installation in the aquarium

Tetra's HT line of heaters are easy to use and work in aquariums ranging from 2 to 55 gallons. The HT10 and HT30 have electronic thermostats that automatically adjust heat output to keep water at a constant 78 degrees F. The HT55 is adjustable between 72 degrees F and 85 degrees F. All HT heaters have indicator lights to let you know when the heater is on, heating the aquarium.