RV City Water Inlet Brass with Check Valve - 3/4" NH Female to 1/2" NPT Male Thread - Includes Dust Plug

Key Features

• Construction: Lead-free brass fitting with a durable, UV-resistant housing.
• Integrated Check Valve: Prevents backflow from the RV's plumbing system.
• Inlet Connection: 3/4 inch NH (GHT) female for standard garden hoses.
• Outlet Connection: 1/2 inch NPT male for direct connection to RV water lines.
• Included Accessories: Comes with a press-in dust plug to keep debris out and a screen filter washer.

Replaces / Cross-Reference Part Numbers

• Serves as a direct replacement for most standard OEM city water inlets with a 3-inch diameter flange and 1/2-inch NPT male connection.

Compatibility & Fitment

• Flange Diameter: 3 inches
• Hose Thread: 3/4 inch Garden Hose Thread (GHT), also known as National Hose (NH).
• Pipe Thread: 1/2 inch National Pipe Taper (NPT).
• Application: Universal fit for most recreational vehicles, motorhomes, campers, and travel trailers.

When to Replace

• Visible cracks, discoloration, or brittleness in the plastic housing.
• Persistent leaking at the hose connection or from the flange mount.
• Failure of the internal check valve, causing water to drain back out of the inlet.
• Stripped or damaged threads on either connection.

Installation Tips

• Ensure the water supply is disconnected and the RV system is depressurized before removal.
• Apply plumber's tape (Teflon tape) to the 1/2 inch NPT male threads to ensure a leak-proof seal.
• Clean the RV exterior surface before mounting the new flange.
• Tighten mounting screws evenly to create a flush seal against the RV wall. Do not overtighten.
• After installation, connect a water source and check for leaks before restoring full pressure.