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The rotor assembly for the Marina Underwater filter. A filter that hums but shifts no water almost always has an impeller problem — grit in the well, a worn shaft, or a chipped vane. Clean it first; replace it if the shaft is scored or the magnet is cracked.
Notes
- Impellers are size-specific — the 50, 75 and 100 are different parts.
- Clean monthly along with the impeller well; that alone prevents most failures.
- The 150 impeller is not stocked here — ask us and we will check availability.
Other spares: foam and Zeo-Carb cartridges.
