I bought this really nice waterfall shower on e-bay but realized that my outlets where much to low... They where made to fit a bathtub and I had to make add an extra 20cm to the system. The rod is 30x18.5mm and comes with the correct connections.Use T-Glase or any other material that looks good and can stand water. Shell is good at around 0.8mm for my settings and I use 10% filling (You must have some). The gasket (made of Ninjaflex) is a perfect fit but you might want to increase the size to 105% if it leaks. (100% filling). With the stabilizer is best to use near 100% filling. You need: 1 rod 1 stabilizer 2 gaskets