Description
Theo
New heating technology from Hydor! The PTC (Positive Thermal Coefficient)
film and unique shatterproof glass make this a durable submersible heater.
Theo heaters switch off if the heater is not fully submersed helping to avoid
overheating. Theo heaters can be positioned horizontal or vertical in the
aquarium and can be submerged. Precise knob clicks in 1°F increments allowing
accurate temperature settings.
