anyuan boy 10-Pack Pet Water Fountain Filter Replacement Set (Activated Carbon & Foam Sponge) for 2.1L Cat Fountain PLWF002
Product description
If you run a cat water fountain, filters quietly do a lot of the work: they help keep water tasting fresher and reduce build-up from everyday pet life. This anyuan boy 10-pack replacement set is built for the Pelibro 2.1L cat fountain system marked PLWF002, and it comes with two filter components per cycle — activated carbon plus a foam sponge — intended to support a 3-layer filtration approach.
The essentials
This is a replacement filter set for a specific type of circulating cat fountain (Pelibro 2.1L, PLWF002). On paper, the filtration is designed to tackle several common water issues at once: the non-woven microporous fabric is meant to trap larger debris, the ion-exchange resin focuses on reducing heavy metal ions and “softening” the water quality, and the activated carbon made with coconut shell is there to absorb impurities and odours.
You don’t need to overthink it to get value here. The appeal of a 10-pack is simply continuity: you can plan replacements without having to reorder every couple of weeks. That said, it’s still a consumable item. If you’re the kind of owner who forgets maintenance, you may find the results don’t feel as consistent as you’d hoped — because filters only perform as well as their schedule.

What you get in the pack
The bundle includes 10 replacement fountain filters and 10 foam sponge filters. Each piece is individually packed, which is useful for keeping everything sealed before you fit it. In day-to-day terms, that means fewer worries about storing wet or exposed components and more straightforward “swap and go” when replacement time arrives.
How the filtration layers are meant to help
The 3-layer concept is the heart of what you’re buying. Based on the product info, the non-woven microporous layer targets larger particles (think: small bits that make it into the stream), the ion-exchange resin is aimed at heavy metal ions and water softening, and the activated carbon is there to absorb impurities and help with odours.



If you have a cat that’s a bit messy around the fountain — or you notice a stronger smell over time — this is the type of replacement set that can help keep the water experience more pleasant. It won’t turn a fountain into a lab-grade purifier, but for typical household use, it’s a sensible approach.
Installation and replacement frequency (the bit people skip)
Before you use the replacement filter, the set should be rinsed thoroughly under running water for 3 to 5 minutes. After rinsing, you install it into the fountain.
For keeping water fresh and hygienic, replacements are recommended every 2 to 4 weeks, depending on how many cats you have. That timing matters because the filter materials are doing the work of trapping and absorbing. If you stretch it much longer than recommended, the filter may become less effective.

Practical example: if you’ve got two cats sharing the fountain, swapping around the 2–3 week mark is likely to feel more consistent than waiting closer to 4 weeks, especially if you tend to see more visible debris or smell build-up.
Where this fits (and where it doesn’t)
It’s a good fit if you already own the Pelibro 2.1L circulating cat fountain system (PLWF002) and you want a bulk replacement set that covers multiple maintenance cycles. It suits you if you prefer staying on top of hygiene and you’d rather manage filter changes in batches.
It may not suit you if your fountain isn’t compatible with PLWF002, or if you’re after a single quick replacement rather than planning ahead. Also, while the materials are described as BPA-free, you should still follow the rinsing instructions and replacement cadence for the best results — no filter set can compensate for missed maintenance.



What to check before you buy
Before adding it to your basket, double-check compatibility with your fountain model (Pelibro 2.1L, PLWF002). If you’re unsure which system you have, it’s worth confirming from the fountain’s label or manual rather than assuming all 2.1L fountains share the same filter design.
Also consider your household reality: if you have multiple cats, you’ll likely hit the shorter end of the recommended 2–4 week replacement window sooner.
Final verdict

Worth considering if you want an affordable, multi-pack replacement set for the Pelibro 2.1L cat water fountain (PLWF002), especially if you’re comfortable keeping to a 2–4 weekly filter routine. It’s most likely to feel worthwhile when you actually replace on schedule and want enough spare units to avoid repeated orders.
Skip it if your fountain isn’t a match for PLWF002, or if you’re unlikely to rinse and replace filters regularly. In those cases, you may end up with uneven performance that’s more about maintenance than the filter itself.
Mini FAQ
How often should I replace these filters?



The guidance provided is every 2 to 4 weeks, depending on the number of cats in your home.
Do I need to rinse the filter before installing it?
Yes. It’s recommended to rinse under running water for 3 to 5 minutes before use.
What filtration materials are included?
The set is described as using a microporous non-woven fabric layer, ion-exchange resin, and activated carbon (coconut shell), plus a foam sponge component.
Is it BPA-free?
The product information states the filter is made from BPA-free material.
Will this work with any 2.1L cat fountain?
It’s specifically described as compatible with the Pelibro 2.1L fountain system marked PLWF002, so it’s best to check that your fountain matches.
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