The only way I've found to an outside faucet with a hose through the wall without being visible. The systems 'standard' offer pipe through the wall makes a bend and plugs into a bracket where to set the tap, less aesthetic. It is indicated for the RIP, but I do not see why we could not put copper, because the output is just a female part which can be screwed any connection 15/21. Depending on the type of material in which you will drill, it will not necessarily easy to do large central hole and the 3 little goshawks properly because there is little space. On a lime wall / stone or chunks fall when drilling is headache! Otherwise, no complaints after a month of installation, just a pity that the only vendor that offers this product starts shipping cost overpriced for such a small room, making it very expensive total!