My filter was not working and was making an awful grinding noise. After about 5 years, my impeller had gone out. I replaced it with the new one and the filter has never worked better. It flows great and best of all, it's quiet!
Verified purchase: Yes | Condition: New
My old Emperor 400 was making this rattle noise all the time. Now with the new impeller is quiet as a cat. I can only hear the calm cascade water sound.
Verified purchase: Yes | Condition: New
If your filter is making a lot of noise it could be that the impeller is out of balance. One of mine came new with one that made a terrible racket. I tried to quiet the thing with no luck . I put it in another 400 filter and it was still noisy. I bought the new impeller and it is quiet. Even new, some of this Chinese made crap is no good. Why should they care. My new one fixed the problem.
Verified purchase: Yes | Condition: New
Great product, that is the engine, for filter system.
Verified purchase: Yes | Condition: New
Great replacement
Verified purchase: Yes | Condition: New
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