Yeah that's it, just a "T" inline. If you look closely at the pic you can see a smaller tube inside a bigger tube on the input side. This is because the T I had was 1/2 inch and the tube coming from my kettle was 5/8 so I just cut a 3 inch piece of 3/8 and stuck it in the 5/8 tube. So the input side is a little bigger diameter than the output, but I don't think this matters. I now actually use a bigger T with a pump and silicon tubing and its the same diameter on both the input and output sides.