These pressure regulating supply sticks combine a number of valves, connectors, and gauges into a compact, single-piece design. Series PCWS was developed to eliminate connections and minimize space requirements in plastic piping systems. The reduction in size and connections provides an overall increase in piping strength by 1,400%, reportedly virtually eliminating potential for breakage. The multi-function assembly, called a “stick,” incorporates the features of a pressure regulator, pressure gauge, and shut-off valve into a single unit. By eliminating the need for multiple joints and pipe sections, installation costs are reduced as well. The inherent pressure regulator can be set to supply downstream pressure from 5 to 125 PSI.