Cartridges are excellent.
These are the best cartridges to use in the Drinkwell. We have five little dogs and need the extra filtration. They are wonderful. Highly recommend them and the seller.

These Filters Are A Step-Up From The Older Version!
Since I already posted a review for the Drinkwell Platinum Pet Fountain, I am going to keep this review focused on the product itself, which is the new and improved filter.

I can't say that I was all that thrilled with the previous filter for use with the older version of the Drinkwell Pet Fountain. It was always producing a lot of charcoal in my cats water and although it didn't hurt him, I still didn't like the site of all that "garbage" in the bottom of his water dish. Also, the old filters didn't seem to do that good of job of filtering out the water. I don't know if it was just me, but I didn't like them all that much.

Now we jump forward to the other day when I got the Drinkwell Platinum Pet Fountain for my cat's eighth birthday, which he was simply overjoyed with and stuck his entire face in the stream to get the first drink.

These new filters seem to do a much better job at filtering out the water as it circulates throughout the system. I have yet to see any charcoal in the bottom of his dish, nor anywhere else for that matter. I would definitely recommend that you buy several of these three-packs of replacement filters and be sure and change them frequently depending upon the condition of your local water. Some places have a harder water than others and therefore should replace the filters more often.

Shawn Kovacich
100% Cat Lover

cats drinking
Since I bought the Drinkwell cat fountain (and keep it supplied with fresh filters), my cats have finally stopped drinking out of the toilet, (they all [3] think they're dogs) and I don't have near the mess to clean up. Yeah!!

EXCELLENT COMMUNICATION
I first received a partial shipment--contacted them about the problem--They emailed me back immediately and said they were sorry and would ship the balance of my order---It came in two days. Thanks Cybercats

Works as advertised
This product is the consumable supplies for the Drinkwell cat water fountain. I'm not sure we really need this carbon filter cartridge for the cats' water (given the places my cats' tongues go), but it works.