Top positive review
Not the greatest.***Please read update***
Reviewed in Canada on February 13, 2021
If first want to mention that I have no issues with the Seascape fountain I use these for as it is a great product. These filters ( along with the carbon filters) are another matter.
First of all, these are WAY overpriced for what you get, considering the frequency of change is stated as 4-6 weeks on the package. The price should be dropped or frequency of change interval increased at these prices.
Second, I find that these develop an algae like smell well before the recommended change period so need cleaning in vinegar/water solution in between. I have very good quality water which is filtered with a reverse osmosis system. Also, I change my water twice a week so I do not know why the smell develops. Maybe because it is the type of plastic.
Third, these filters do not seem to work that well. Hair gets around them ending up in the pump so the pump must be monitored weekly, and even more in multiple cat households, for debris.
I think that I will be buying the knock-off filters obtainable here on Amazon to save money. The manufacturer should be lowering the price for these at the recommended change intervals.
Disappointing to say the least.
*** Update April 22/2021 *** I am raising the rating from 2 to 4 stars because this product is much better than the knock-offs I tried here on Amazon. The knock-offs emit a nasty, gaseous, chemical smell which I will not use in the fountain. These are neutral in smell and just need cleaning every week to keep them from getting slimy. A decent product which keeps most hair, but not all, from entering the pump. I still think that these are very expensive so I will try to use them for longer, cleaning them in between changes often.