Does the job. Fits in my Petkit fountain.

bought them for a petit ever sweet solo Se they fit but barely. they need a bit of "convincing"

Parece que funcionan, igualmente se ven de menos calidad pero funcionales.

Hole in the center is too small for the permit fountain I have and had to squeeze to fit. Pls make it little larger so it will comfortably fits. Quality is flimsy compare to petkit ones, since there is no plastic part at the back to support. There is no instruction and no exact ingredients listed. So I’m little worried. I’ll try one and see how my cat likes