https://www.google.com/url?sa=t&rct=j&q=tunze%20osmolator&source=web&cd=7&ved=0CGQQtwIwBg&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DkTST0xK9xkQ&ei=qKkmUZfUFvCO0QGEroFo&usg=AFQjCNFpbaQk6JPQT4hFMkO0qlZRSPx5gA&bvm=bv.42661473,d.dmQ
Comes with everything needed. The other two options listed...