Easy to adjust knob can be loosened with a screwdriver to affect water flow; range from 0 to 160 psi. Great for use with our portable water heaters; recommended for RVs, campers, etc.! An included gauge shows the pressure with clear and accurate accuracy and an included filter is easy to remove and clean, which helps the water flow. Lead-free brass, meets drinking/potable water standards. The flow direction is clear by the markings on the part. Product Description This brass RV water pressure regulator is important for any water system because it shows the water pressure and helps you keep the system in good condition. Our regulator comes with many features, such as an easily adjustable knob to control the flow/pressure, a gauge to tell you exactly how much water pressure you have, a filter to remove debris in the water and increase the efficiency of the system, and easy-to-read flow directions on the regulator body. In addition, the reducing valve is designed to reduce noise caused