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Quick answer: The PETKIT EverSweet Solo 2 fountain is P4114, and the manufacturer lists replacement filter P4161 as compatible with Solo 2. Before ordering, confirm the fountain code, plan for continuous power with a separately purchased adapter, and match the filter code to the official compatibility list. (Solo 2 official page; Filter Unit 3.0 official page)
Contents
- Confirm the Solo 2 model
- Check capacity and power
- Match the replacement filter
- Keep similar names separate
- Pre-purchase checklist
Confirm the Solo 2 model
PETKIT’s official US specification names EverSweet Solo 2 as model P4114, with a 2 L capacity and Bluetooth app connection. Those details identify the fountain covered here; use the exact model name and code when checking a product detail page. “Solo” alone is not a sufficiently precise compatibility check for a replacement item. (Solo 2 official page)
Check capacity and power
PETKIT says the fountain must remain plugged in to pump water, and the power adapter is not included. This is the key setup constraint: plan for a continuous outlet connection and confirm the adapter requirement from PETKIT’s instructions before ordering. The 2 L figure is reservoir capacity, not a fixed refill interval; the manufacturer notes water use varies by pet. (Solo 2 official page)
That distinction helps separate product fit from lifestyle fit. A small reservoir may suit a home where someone checks water regularly, but the capacity by itself cannot tell you how often your pet will drink or when you will need to refill. Likewise, the Bluetooth listing tells you the stated app connection method; check the setup instructions and your own preferences before treating an app feature as essential.
Match the replacement filter
PETKIT names Filter Unit 3.0 P4161 and includes EverSweet Solo 2 in its supported-fountain list. The same list separately names Solo SE, EverSweet 3 Pro and EverSweet 3 Pro (UVC), so the filter listing is evidence for this filter’s stated fit—not proof that those fountains share the same features or other interchangeable parts. (Filter Unit 3.0 official page)
PETKIT suggests a 2–4 week replacement cycle on the filter page and a four-week interval in its Solo 2 FAQ. Treat these as manufacturer guidance, not a guaranteed lifespan. Filter conditions and water use may vary, so follow the fountain and filter instructions and use the app reminder if that suits your routine. (Filter Unit 3.0 official page; Solo 2 official page)
Keep similar names separate
| Item | Manufacturer identification | Buying implication |
|---|---|---|
| EverSweet Solo 2 fountain | P4114 | Check the code in product details when buying the fountain. |
| Filter Unit 3.0 | P4161 | The official compatibility list names Solo 2. |
| EverSweet Solo SE | Separate fountain name | Its inclusion on the filter list does not make it the same fountain as Solo 2. |
| EverSweet 3 Pro / 3 Pro (UVC) | Separate fountain names | Confirm the exact version; do not infer broader part compatibility from the shared filter listing. |
This comparison is intentionally limited to model identity and the filter list. It does not evaluate the performance of the filter or compare the other fountains’ capacities, pumps or features. (Solo 2 official page; Filter Unit 3.0 official page)
Pre-purchase checklist
- Match the fountain code. Check that product details name EverSweet Solo 2 and P4114.
- Plan the power connection. The unit needs to stay plugged in, and its adapter is sold separately; confirm the required adapter in the official instructions.
- Decide whether the capacity fits your routine. Use the listed reservoir volume as a size reference, not a promise of refill timing.
- Check the replacement filter. Compare the exact fountain name with PETKIT’s current Filter Unit 3.0 compatibility list.
- Treat filter timing as guidance. Follow manufacturer instructions and reminders rather than assuming a fixed lifespan.
- Keep neighboring model names distinct. Compatibility with one replacement filter does not prove that fountains or their other components are interchangeable.
The Solo 2 may fit when its capacity, Bluetooth connection and plugged-in setup suit your routine. The clearest filter check is the exact model against PETKIT’s supported list. For more choices, browse our water fountain guides and filter and parts articles.
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