Tetra impeller EX 400 Plus for external filter — replacement rotor (MPN 260160)

Replacement impeller designed for the Tetra EX 400 Plus external aquarium filter. This rotor restores the pump’s hydraulic performance and helps return the unit to proper flow rates and filtration efficiency. It is a single spare part intended for routine maintenance or repair of the EX 400 Plus filter to ensure consistent water circulation in freshwater aquariums.

Advantages

The impeller is made to fit the original geometry of the EX 400 Plus pump chamber, enabling straightforward installation and reliable alignment with the motor shaft. By replacing a worn or damaged rotor, it reduces vibration and noise from the filter and helps recover the intended water throughput. The design supports continuous operation and is compatible with the filter’s existing impeller housing and bearings.

Suitable for

• Maintenance and repair of Tetra EX 400 Plus external aquarium filters
• Restoring pump flow in freshwater aquariums
• Replacing worn or damaged rotors to reduce noise and vibration

Key specifications

• Compatibility: designed for use with Tetra EX 400 Plus external filter
• Function: rotating impeller/rotor for pump and water circulation
• Material: durable molded plastic suitable for aquarium use
• Weight and dimensions: compact, sized to fit the filter’s impeller chamber (matches original part geometry)
• Intended environment: freshwater aquariums

How to use

Turn off and unplug the filter before performing any maintenance. Open the filter housing according to the manufacturer’s instructions, remove the old impeller and inspect the shaft and impeller cup for wear or debris. Clean the impeller chamber and shaft, then insert the replacement rotor ensuring it seats correctly on the motor shaft. Reassemble the housing, reconnect hoses as required, and restart the filter while checking for proper flow and absence of excessive vibration or noise.

Usage recommendations

Perform visual inspections of the impeller and impeller cup periodically and replace the rotor if signs of wear, cracking, or imbalance are present. Regular cleaning of the impeller chamber and impeller reduces the risk of clogging and maintains efficient filtration. Use only the specified replacement designed for the EX 400 Plus to ensure correct fit and performance.