For FiltoSmart 300

• The OASE FiltoSmart ThermoFit allows the HeatUp 100, 200 & 300 to be securely fitted into the FiltoSmart 100, 200 and FiltoSmart 300.
• This accessory creates a watertight seal that is necessary for aquariums..

What's In The Box:

Heater tube, base, centering ring, and heater adapter