Shurflo 183-039-08 Inline Water Pressure Regulator 50 PSI with Check Valve

The Shurflo 183-039-08 is an inline water pressure regulator designed to protect RV plumbing systems from high-pressure damage caused by city water connections. This compact pressure reducing valve combines a diaphragm-style regulator with a built-in check valve to limit incoming water pressure to a safe 50 PSI while preventing backflow into the municipal water supply.

Key Features:

• Regulates city water pressure to a consistent 50 PSI output
• Built-in check valve meets code requirements and prevents backflow
• Diaphragm design provides continuous protection from pressure surges
• 3/4" GHT (garden hose thread) female swivel inlet with standard hose compatibility
• 1/2" NPSM male outlet for connection to RV water inlet
• Compact inline design allows easy hose-mounted installation without permanent mounting
• Durable cream-colored housing for corrosion resistance

This pressure regulator is essential for RV owners who frequently connect to campground or municipal water sources with varying or excessive water pressure. The combination regulator and check valve design eliminates the need for separate components, saving space and simplifying your water system setup. Simply thread it onto your water hose between the spigot and your RV's city water inlet for instant protection against pressure-related plumbing damage.