If you need to create a pipeline in your apartment or house, then the question arises: which pipes to choose? And how the plastic pipes differ from metal -plastic? And which of them will suit you? First you need to determine which manufacturers of polyethylene pipes are best. You also need to decide on operating conditions: operating temperature and pressure. Then you should get acquainted with the features of the pipes you are interested in and the specifics of installation. The most common are plastic and metal -plastic pipes.