Aqua One 4I Impeller Set
A brand new Aqua One 4I impeller set designed for use in Aqua One AquaStyle 850, AR850, AquaStyle 980, AR980T, and UFO700 aquariums. These impellers are the only moving part in your filter pump and operate continuously, making millions of revolutions each day throughout the year. Wear is inevitable, and replacing the impeller annually helps prevent unexpected filter failure. This replacement ensures consistent filter performance and protects your system from sudden breakdowns.
| Product Model | Compatible Aquarium Models |
|---|---|
| AR850 | AquaStyle 850, AR850, UFO700 |
| AR980 | AquaStyle 980, AR980T, UFO700 |
FAQ
How often should I replace the impeller in my aquarium filter?
It is recommended to replace the impeller annually due to continuous operation and inevitable wear. This helps maintain consistent filter performance and prevents sudden filter failure.
Is this impeller compatible with all Aqua One models?
Yes, this 4I impeller is compatible with Aqua One AquaStyle 850, AR850, AquaStyle 980, AR980T, and UFO700 models.
Does this impeller come with installation instructions?
Please contact customer service for installation guidance.


Amanda Ellison –
I replaced my old impeller after two years of use and noticed a significant improvement in water flow. The filter works more efficiently now and hasn’t stopped working since. Easy to install and fits perfectly.
Felicity Butler –
Fitted it to my AR980T filter last month. The filter runs smoother now and I haven’t had any clogging issues. It’s a simple replacement but makes a noticeable difference.
Max Mathis –
After the impeller failed unexpectedly last year, I bought this set. It’s a must-have for maintaining consistent filtration. The fit is exact and the performance is reliable.
Andrea Smith –
It fits well, but I had to adjust the mounting slightly. Works okay, but not as strong as the original. Might need to check alignment when installing.