PetSafe Drinkwell Fountain Premium Activated Carbon Filters - Better Hydration Choice - Long-Lasting Purity - Odor-Free Drinking - Water Purification Filter - 12 Pack

Ok, so I clean my Drinkwell Platinum Fountain Drinkwell Platinum Pet Fountain 168oz and put the unit back on the floor. I lay down on the coach to take a nap. Next thing I know I have 3 paws whacking me upside the head and I hear, "Hello Mcfly, you did not change the dang filter and now the water is running over the top of the filter." So I get up and check out the filter. Low and behold the cats were correct. I did not change the filter and the water just ran over the top and went to the basin without being filtered. Now this was the 5th time in 6 weeks I had cleaned the unit. Basically it took 5-6 weeks for the filter to clog up. As the 3 amigos stared at me like I was a complete idiot I proceeded to replace the old filter with a new one from my stock I had purchased on Amazon. Once the new filter was in place, the 3 amigos all took their turns playing in the water, only pausing to give me the look of, "next time don't be such a dingbat," then proceeding to continue their frolicking.So here is the skinny on the filters. They really don't consist of much other than a fibrous trapezoid shaped to fit in your Drinkwell filter slot. They do have a black carbon side with some carbon granules between both sides that is supposed to remove odor from the water. How much odor it takes out I cannot say. But I am sure it does help.These filters will not take out anything that would be considered harmful like hard metals or even any minerals. They are not made for that purpose. They are made to keep things like hair or food particles from recirculating. And they function quite well for that purpose.Length of life simply depends on how many cats you have, how fast the filtration flow is, and how dirty your cats are. Over time I have noticed that my usage, with 3 playful kittehs, varies between 4-6 weeks. Now one of my cats thinks he is a raccoon. He is constantly taking his food over the water and cleaning it. Ok, he may just be playing with it, but he does take it over to the Drinkwell unit and puts the food in the water and then proceeds to bat it around. I also have another cat that likes to use his paws to bring the water from the waterfall to his mouth. For these reasons I tend to get a lot of cat hair in my fountain. Most is stopped by the hard plastic "pre-filter" but some does get by. This likely has an effect on my filters lifespan.I highly recommend these filters. As I have yet to find a generic brand for these filters you really don't have much of an option, unless you want to make your own. I make my own fish tank filters, but I have a basket/case made for the filtration materials to fit in. I have never seen anything like that for these filters. For that reason you really do not have much option other than using these, unless you want to somehow create your own basket to put your filtration media into. That being said, these filters do what they are intended to do.Watch for these to be on sale in bulk. I have found a 12 month supply (12 filters/4 - 3 packs)Drinkwell Platinum Premium Filters, 12-Pack for a good price at different times. The price does fluctuate so you have to watch it. Sometimes it is cheaper to purchase them just 1 package at a time and sometimes it is better to purchase them in bulk.

I just love these replacement carbon filters for my drink well water dish. Very easy to use, and keeps the water very clean. Not noisy at all. Calming effect on my cats. I have 7 of them. I change my water dish once a month. I have 2 of them. Great price!! I have bought them several times from this same site. Never any problems. Highly recommend them.. Sincerely, M G

Great product, they fit perfectly in the petwell drinksafe fountain I have

Good filters. I had been buying an off brand of filters for our pet fountain. But it had water getting on the floor. We weren't sure if it was the quality of the filters or the cats splashing water out. But the name brand filter does seem to be doing a better job.

I was so disappointed when my Drinkwell fountain had a low pressure stream, even though I was removing the cat hair from the little vent in the bowl. I honestly thought maybe the fountain burned out from a time when it had been running all day with almost no water. (I've had this happen while cleaning out an empty fish tank, and found later that this happens when some filters are run without water!) I was about to throw away my filter and purchase a new one but then decided I didn't want to throw my 60 dollars down the drain (It's only 30 something dollars now, haha!) So I Googled low-pressure in Drinkwell Fountain, couldn't find anything other than possible manufacturer defects. After looking for a bit more, I came across two reviewers who said they saw improvement after cleaning the pump, so I gave it a shot. My fountain works as though it was brand new. I am SO glad I bought it (I initially thought why not just buy some pipecleaners and try it that way, but after cleaning my pump, I'm glad I put in the small investment). I don't usually write long reviews, but I wrote this one here because I hope to save other people the trouble of getting rid of their fountain because of a fixable issue like this! My only complaint about the cleaning kit is that the largest piece is meant to fit inside the water container, and while it does fit, it doesn't quite reach all the areas inside perfectly. However, the other two pieces in the kit make it entirely worth the purchase. And as for the water container, just put a little warm water in it, cover the opening with your hand, and shake the container pretty hard. That thoroughly cleaned that area for me.

I am so happy to be able to continuously get the filters for my fountain. It keeps my pets water clean and healthy. The fountain increases my pets water intake.

The filter helps the water stay fresh and clear of impurities for about two weeks at a time. I can tell it is working when I remove the old filter and there is a bit of a brown film on it. It's worth the money to keep my cat's water fresh and to keep me from having to change it more frequently. Very easy to place in the unit as well, and it fits perfectly in the allotted space and does not move around.

Great refill pack, can use the same site each time to get the same service each time you buy them.