oneisall 8 Replacement Filters for Cat Water Fountain (PW13/PW14) – 8-Count White Set with Pre-Filter Sponges

If you’ve got an oneisall cat water fountain, filters aren’t really optional—they’re the part that keeps the water tasting fresh and reduces the usual build-up from fur and debris. This oneisall 8 Replacement Filters set is made for the PW13 (2.2L wireless) and PW14 fountain models, and it comes as a tidy bundle with both replacement filters and pre-filter sponges.

Quick overview

This pack includes 8 replacement filters and 8 pre-filter sponges, with both filter components individually sealed. On paper, that’s helpful if you don’t want open packs sitting around, and it keeps things cleaner until you’re ready to swap them.

The filtration approach here is described as a multi-filtration system using activated carbon filters to help capture hair and debris and remove impurities. If you’ve noticed the fountain water losing that “clean” feel over time, a fresh filter cycle is often the simplest fix.

Key features and what they do day to day

Where this set is most likely to matter is in the practical stuff you see: strands of hair, tiny bits of debris, and the general “stuff” that accumulates in fountain bowls. The activated carbon filter element is there to help address impurities, while the pre-filter sponge role is to catch larger particles before they get further into the system.

A small but important detail in the instructions: before first use, you’re told to soak the filter for 5 minutes and rinse it for 30 seconds. That’s the kind of step that people sometimes skip, but it’s specifically included to activate performance and clear residual dust.

It’s also worth noting the suggested maintenance rhythm. The recommended replacement cycle is every 2 weeks for best filtering results. If you’ve got more than one cat (or your cat is a heavy shedder), the guidance says you may need to clean the fountain and replace more frequently.

What’s included in the box

You get 8 replacement filters and 8 pre-filter sponges in total. The components are individually sealed, which is a nice touch for hygiene and storage—especially if you like to have replacements ready so you’re not caught needing them.

Prep, fitting and replacement cycle

No complicated guesswork is needed here, but you do need to follow the prep steps before the filter is used. The pack’s guidance is clear: soak for 5 minutes, then rinse for 30 seconds before placing it into the fountain system.

For timing, the “every 2 weeks” guidance is fairly proactive. If you prefer longer intervals, you can still use them, but you may not get the best filtration effect the system is designed for—so it’s the sort of product that rewards staying on top of maintenance.

Here’s a simple real-life example: after a week or two of use, you notice the water looking a bit duller and there’s more fur in and around the bowl. Swapping to a fresh set, including the pre-filter sponge, is the kind of quick reset that tends to improve what your cat encounters every time they drink.

Who it’s for (and who should be careful)

This is a sensible buy if you already own an oneisall cat water fountain in the PW13 family or PW14 and you want replacement parts that match that setup.

It may not be for you if: - you’re not committed to frequent maintenance (the guidance points to a 2-week replacement cycle for best results) - you’re looking for a low-intervention option where filters last for months—this set is aimed at regular refreshing rather than long intervals - you don’t have a compatible oneisall PW13 (2.2L wireless) or PW14 fountain model, because compatibility is specifically tied to those

Tech specs (from the provided details)

• Name: oneisall 8 Replacement Filters for Cat Water Fountain PW13/PW14
• Type: Replacement filters set with pre-filter sponges
• Format: Activated carbon multi-filtration system (as described)
• Compatible model: PW13 (2.2L wireless) and PW14
• What’s included: 8 replacement filters and 8 pre-filter sponges
• Colour: White
• Count: 8

Buying verdict

If you prioritise clean-tasting, fresher fountain water and you’re happy to stick to a regular 2-week replacement rhythm, this oneisall PW13/PW14 filter set makes practical sense. The inclusion of pre-filter sponges plus the sealed packaging reduces the usual hassle of keeping spare parts tidy.

However, if you’re the type of owner who routinely stretches filter changes—or you want a set-and-forget approach—this could feel like more maintenance than you want. In that case, it might be better to adjust expectations and plan your routine around more frequent swaps.

Mini FAQ

How often should I replace these filters?

The guidance provided recommends replacing the filter every 2 weeks for best filtering results.

Do I need to soak the filter before using it?

Yes. Before first use, you’re advised to soak the filter for 5 minutes and rinse it for 30 seconds.

What’s included with the set?

Each pack includes 8 replacement filters and 8 pre-filter sponges, and both types are individually sealed.

Is it compatible with PW13 and PW14?

Compatibility is stated for the oneisall PW13 (2.2L wireless cat water fountain) and PW14 models.

Does this filter help with hair and debris?

According to the description, the filtration system uses activated carbon to capture hair and debris and remove impurities.