I got a misaligned band for the glass receptical. I contacted them, and they sent me a new one. No questions asked and did it ASAP (it had to be ordered from their German facility). In the meantime, I used the distiller. This is the first I have ordered from Vevor and it is far better than the others I had from other companies. It gives me clear good tasing water...I use it for coffee, my cpap and my distiller. It leaves no residue in the cpap or distiller. This distiller is easy to set up and use. It gives wonderful results. I highly recommend it.