FUNCTION: Prevents water pipes from damage due to high pressure, suitable for campers, trailers, and RV plumbing systems. SAFETY: Made of C46500 lead-free brass using hot casting technology. Each regulator is tested to contain less than 0.13% lead, well under the NSF lead-free requirement of 0.25%, ensuring safe and healthy water use. COMPATIBLE: Features 3/4 inch garden hose thread design, compatible with standard American water sources. Includes an inlet screen to help filter water impurities. ADJUSTABLE: Factory preset at 45 PSI, adjustable up to 160 PSI. Water pressure can be easily adjusted by turning the adjustment screw clockwise to increase pressure or counterclockwise to decrease it. GAUGE DISPLAY: Built-in pressure gauge allows clear monitoring of water pressure, ideal for use with RVs, campers, and travel trailers.