sorry.. no link. measured it out and had them cut the pipe at lowes. you just buy the fittings separately. they come threaded so you can measure those and then calculate how long your pipe piece need to be. you loose about 1/2" to threads that screw in. its not exact so you have to give yourself a little room and might require a second trip to lowes to get it the way you want it. make sure the wall mount part is on the wall good that means use high weight anchor bolts or screw directly into wood. you dont wan the whole thing to drop into your tank. to hang, i drilled a slightly larger hole on the top of the pipe and then followed with a smaller drill bit to punch through the bottom. that way i can run the hanging wire through the pipe and let the little ball pass only through the first hole. that's it.