Casfuy W8 & W7 Pet Water Fountain Replacement Filters & Sponges, White, 4 count

$12.99 Chewy Price
($3.25 /ea)
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About This Item

Details

  • Compatible with Casfuy pet water fountains and other similar filter-sized water fountains.
  • Each pack includes 4 filters and 4 sponges for effective filtration and hair removal.
  • Advanced 4-stage filtration system removes impurities and improves water quality for clean, fresh water.
  • Simple pre-use preparation ensures optimal performance—just rinse the filter and install it with the flat side facing up.
  • User-friendly and easy to maintain with regular replacements every 1-2 weeks.

Instructions

Questions & Answers

2 Customer Questions


Can the filters be cleaned and reused?


How often should I change filter

Answer by ChewyAug 20, 2025
These filters are easy to maintain with regular replacements every 1-2 weeks.
4.7
Rated 4.7 out of 5 stars
105 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Durability

87% Positive

Filter Efficiency

91% Positive

Noise Level

81% Positive

Pump Power

85% Positive

27 Customer Reviews



Rated 5 out of 5 stars
By sandra on Jan 7, 2026

Cat loves it

This is a very nice fountain, not too loud in fact hardly noticeable. It will hold a lot of water, I change it out every week and refill with filtered water we keep

This is a very nice fountain, not too loud in fact hardly noticeable. It will hold a lot of water, I change it out every week and refill with filtered water we keep in fridge. So their water is filtered twice. There is a little trick you need to know when putting it back together after you fill it. The white rubber piece shouldn’t be pushed down all the way onto the internal pump and when you put the stainless steel bowl on top be sure not push the rubber piece down, set the bowl gently on it. If you don’t the fountain won’t bubble the water out or it will be very slow. The cord to plug it in is quite long so you don’t have worry about not being able to reach an outlet. One of my cats, Lilly drinks out of it all the time she loves it.. my other cat, Bella, for some reason she does drink out of it, but likes to drink out of the toilet or out of a Glass sitting in the sink or something like that odd kitty. But if you’re looking for a good water fountain for your pets, I find this to be very sufficient and like I said I have two cats and one fill of the water bowl will last almost 2 weeks, but I change it out once a week. I take it apart wash everything and refill it with filtered water from my fridge and it works just great highly recommend.


Rated 5 out of 5 stars
By Julie on Dec 11, 2025

So simple and loved by cats and dogs alike

Love it!!! So easy to assemble and very quiet .after a bit of checking it out all animals loved it Makes the day easier for sure Ready to assemble the additional

Love it!!! So easy to assemble and very quiet .after a bit of checking it out all animals loved it Makes the day easier for sure Ready to assemble the additional one I bought, happy I did with 4 animals and sometimes 5 it is getting lots of use Strongly recommend


Rated 1 out of 5 stars
By Ray on Jan 2, 2026

Doesn’t work with my waterer

Showed that this matched the item I bought but it doesn’t replace anything. Be cautious as it is not described accurately.

Showed that this matched the item I bought but it doesn’t replace anything. Be cautious as it is not described accurately.


Rated 5 out of 5 stars
By Yvonne on Oct 10, 2025

Love it

I just got it but do love that it plugs in! Think this will be much better than the battery operated one, then they had discontinued the filters. I had it less than

I just got it but do love that it plugs in! Think this will be much better than the battery operated one, then they had discontinued the filters. I had it less than a year, with my previous cat she had one like this and never needed to get another one! I like the look and that it’s stainless steel!


Rated 5 out of 5 stars
By Elizabeth on Dec 23, 2025

Silent water fountain

This fountain is completely silent yet generates a gentle flow of water that my cat Geddy really seems to like.

This fountain is completely silent yet generates a gentle flow of water that my cat Geddy really seems to like.


Rated 5 out of 5 stars
By Debra on Jan 14, 2026

Great quality!

The quality, quiet, maybe a bit big for my toy breed dogs. Half that tall would have been better.

The quality, quiet, maybe a bit big for my toy breed dogs. Half that tall would have been better.


Rated 5 out of 5 stars
By Billy on Dec 15, 2025

Fresh filtered water.

The size difference s perfect. The simpleness of changing filters. Having fresh filtered water for my pets.

The size difference s perfect. The simpleness of changing filters. Having fresh filtered water for my pets.


Rated 5 out of 5 stars
By Kalee on Nov 17, 2025

Fits my fountain so happy camper

Fit in my casfuy W8 stainless steal dog & cat water fountain 102-oz. Appreciated that it includes filters for inside fountain and top of fountain.

Fit in my casfuy W8 stainless steal dog & cat water fountain 102-oz. Appreciated that it includes filters for inside fountain and top of fountain.


Rated 4 out of 5 stars
By Michele on Dec 4, 2025

Flowing water

They seem to have accepted this new water system. Took a bit of time but am sure they are using it now

They seem to have accepted this new water system. Took a bit of time but am sure they are using it now


Rated 5 out of 5 stars
By Sheila on Nov 30, 2025

Great to have as as an autoship item

Nice to have a stash of these to easily switch out every few weeks without having to remember to reorder.

Nice to have a stash of these to easily switch out every few weeks without having to remember to reorder.