The Oase ThermoFit enables the retro-fitting of an existing FiltoSmart External Aquarium Filter with an Oase HeatUp Heater which effectively converts it into the FiltoSmart Thermo. This provides safe, fully adjustable heating of the aquarium without disturbing the visual appearance of the tank.

Key Features:

• For use with FiltoSmart 100 + HeatUp 100 Heater
• Allows the retro-fitting of a HeatUp Heater into an existing FiltoSmart Filter
• Creates undisturbed views of the aquarium without visible technology
• Available in 3 sizes to fit FiltoSmart 100, 200 & 300