The invention is configured for water-supply and comprises the vertically oriented hydraulic accumulator; inlet and outlet connections; connected to a hydraulic accumulator filter with a removable cartridge, located in the casing; the hydraulic accumulator made in a suspended manner and equipped with the commutator with a flange for attachment to the hydraulic accumulator, located in its lower part. The commutator is made with channels, connected with the inlet and outlet connections, and with holes for attached controlling and regulating equipment. Filter casing is installed on the thread at the commutator. The invention reduces the size, and simplifies the structure of the device due to minimizing the number of transitions and connections, while simultaneous improving the conditions for monitoring and controlling water supply modes from one work place—from the commutator, which is the set of equipment for the device control automation in general.