Quick answer
Choose the Fountain Cube C if you need a fresh filter for your Eversweet Ultra fountain; choose the Wireless Water Pump FFT1-2 if your EverSweet Max 2 fountain needs a new pump.
What each part does
The Fountain Cube C is a drop-in filter cartridge designed for the Eversweet Ultra Cat Water Fountain. It uses high-density carbon and a slime-resistant layer to improve taste and reduce buildup. The Wireless Water Pump FFT1-2 is the pump unit for the EverSweet Max 2 Pet Water Fountain, featuring heat-resistant PPO materials and anti-drying protection. They serve completely different functions and are not interchangeable.
When to replace each part
Replace the Fountain Cube C every 30 days for consistent filtration. The PETKIT App can track usage and remind you. The Wireless Water Pump FFT1-2 should be replaced only when it stops working properly or shows signs of wear, such as reduced flow or unusual noise. It is not a scheduled replacement item.
Trade-offs at a glance
- Fountain compatibility: Fountain Cube C fits only the Eversweet Ultra. Wireless Water Pump FFT1-2 fits only the EverSweet Max 2. Check your fountain model before ordering.
- Replacement frequency: Fountain Cube C needs monthly replacement. The pump is replaced only when it fails. Budget for a monthly filter cost if you own an Eversweet Ultra.
- Function: The filter improves water quality and taste. The pump moves water through the fountain. If your fountain stops flowing, the pump is the likely culprit.
Product facts
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Fountain Cube C: High-density carbon enhances water taste, while a slime-resistant layer reduces buildup by 30%. Your cat is more likely to drink enough if the water tastes fresh and the fountain stays cleaner between changes.
Fountain Cube C
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Wireless Water Pump FFT1-2: Built with heat-resistant PPO materials and a detachable structure for effortless cleaning. The pump lasts longer and is easier to maintain, reducing the chance of clogging or overheating.
Wireless Water Pump FFT1-2
Which one is right for you?
Best for
- Fountain Cube C: Eversweet Ultra owners who need a scheduled filter replacement.
- Wireless Water Pump FFT1-2: EverSweet Max 2 owners whose pump has stopped working or is losing performance.
Not for
- Fountain Cube C: EverSweet Max 2 or other fountain models.
- Wireless Water Pump FFT1-2: Eversweet Ultra or any fountain other than the EverSweet Max 2.




