Yea, the tubing that runs from the liquid to the doser - not any physical pieces. So should I still go to a LFS to get the airline tubing or can do home improvement stores offer it?
I used the Petco air tubing. It must be TIGHT. DO NOT get the HD/Lowes stuff. You see if they have it at Aquatic Collection? They have some tubing on rolls there.
If you find tubing thats not the exact size, just get some that fits a little tight (one size smaller). Add some heat, not much, and that will help make it fit. Done that a bunch of times works great. Goodluck.