I needed a pump not too powerful and above all with the same diameters for connections. This pump quite fit my requirements. Compared to my old pump, it is virtually inaudible (buried and enclosed area with a hatch) so a very good point. I have no complaints about him ... hope it lasts over time. Amazon thank you for your efficiency.
Changing the comment: No luck, down in less than 4 months ... I'll have to contact the service, it already drunk ... 2 stars less.