Function: Prevents water pipes from being damaged due to high pressure. Suitable for campers, trailers, and RV plumbing systems. Double filter design prevents regulator clogging by impurities, extending service life. Safety: Made from C46500 grade lead-free brass, manufactured via hot casting process. Each unit is tested to contain less than 0.13% lead — well below NSF’s 0.25% lead-free requirement. Compatibility: Features standard 3/4-inch garden hose thread (GHT). Unobstructed inlet ensures smooth, steady water flow. Compatible with all standard water sources. Includes inlet strainer to filter impurities. Adjustable: Factory preset at 45 PSI. Adjustable range: 45–55 PSI. Use a screwdriver to adjust — turn clockwise to increase pressure, counterclockwise to decrease. Use: Install in RV water line to regulate incoming pressure from city water sources and prevent damage caused by pressure differentials. Design: Straight-through, one-way flow structure. Operates at atmospheric pressure. Warning: Turn off all RV water supplies before adjusting pressure. Material: Brass Color: As shown Package Contents: - 1 x Water pressure regulator (with 1 filter cover) - 2 x Washers - 2 x Filter covers - 1 x Thread-sealing tape Note: Actual color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.