Impeller for Tetra Tetratec EX 1200 aquarium filter, spare rotor (MPN 27108)

Replacement impeller designed for the Tetra Tetratec EX 1200 external canister filter. This spare rotor restores the rotating assembly of the pump to recover rated flow and reduce vibrations and noise caused by worn or damaged impeller parts. The component is intended for maintenance and repair of external aquarium filtration systems used in freshwater and tropical aquaria and helps maintain reliable water circulation and filtration performance.

Advantages

The impeller is made to match the original geometry and tolerances of the Tetra EX 1200 filter rotor, providing proper hydrodynamic performance and balanced rotation. Replacing a worn impeller with an appropriate spare part restores pump efficiency and reduces the risk of uneven flow, cavitation and excessive noise. Installing the correct rotor helps extend the service life of the pump and prevents sudden circulation failures that can affect aquarium water quality.

Suitable for

• Maintenance and repair of Tetra Tetratec EX 1200 external canister filters
• Restoring normal flow and reducing pump noise in freshwater and tropical aquariums
• Routine seasonal replacement to avoid impeller wear-related issues

Key specifications

• Component type: replacement impeller (rotor) for external aquarium canister filter
• Compatibility: designed for Tetra Tetratec EX 1200 series canister filters
• Function: restores pump rotation, flow and reduces vibration
• Material: durable engineered plastic suitable for continuous wet operation
• Operation environment: freshwater and tropical aquarium systems

How to use

Shut down and disconnect the canister filter from power before opening the unit. Remove the filter head or motor housing according to the manufacturer service instructions, extract the old impeller assembly and inspect the impeller shaft and bearings for wear or debris. Fit the replacement impeller in the same orientation, ensuring it seats correctly on the motor shaft and that any seals or O-rings are positioned as originally installed. Reassemble the filter head, reconnect hoses if applicable, and restart the unit to verify smooth rotation and restored flow. Check for leaks and abnormal noises during the initial run.

Usage recommendations

Perform visual inspections of the impeller and shaft every 3–6 months, and clean or replace the impeller if signs of wear, biofilm buildup, or mineral deposits appear. Use manufacturer-recommended lubricants or replacement seals if needed and follow Tetra service guidelines to maintain optimal filter performance and aquarium water quality.