Oyviny RV City Water Inlet 3/4 NH to 1/2 NPT — Lead-Free Brass Flange with Check Valve

Oyviny RV City Water Inlet is a lead-free brass replacement water fill inlet with a built-in check valve and 3" flange for fast, leak-resistant connection of city water hoses to trailers, motorhomes and boats.

This replacement inlet fits standard RV plumbing and converts a 3/4" NH (GHT) female hose connection to a 1/2" NPT male pipe thread, offering a durable, easy-to-install solution for restoring your vehicle or vessel’s city water hookup. Constructed from low-lead brass and supplied with a removable screen filter, spare dust cap, screws and sealant tape, the inlet is designed for long-term outdoor exposure and simple field replacement.

How does installation work and how long does it take?

Installation is straightforward: remove the old inlet, align the new flange at the correct angle, then fasten using the included screws and thread sealant tape. With basic hand tools, most users can complete the swap in 15–30 minutes.

• Remove old inlet and sealant residue
• Apply included sealant tape to 1/2" NPT male thread
• Thread inlet into plumbing at proper angle to avoid leaks
• Secure flange with supplied screws and fit dust cap

What materials and safety features are included?

The inlet body is cast from lead-free brass (measured low lead content) for safe potable water use, while the flange and accessories use UV- and corrosion-resistant components. A built-in check valve prevents backflow and a removable mesh screen blocks debris before it enters the water system.

• Lead-free brass body (low lead content)
• Internal check valve to prevent backflow
• Removable screen filter and spare dust cap
• UV- and wear-resistant plastic flange

Will this inlet fit my RV or boat plumbing?

This inlet is designed for universal compatibility with common RV and marine city water connections: it accepts 3/4" NH (GHT) hoses on the exterior and connects to 1/2" NPT plumbing inside. Confirm your existing hose thread and internal pipe size before purchase to ensure a proper match.

• Exterior: 3/4" NH (GHT) female thread for standard hoses
• Interior: 1/2" NPT male thread for typical RV plumbing adapters
• 3" flange fits standard mounting openings on many campers
• Includes spare parts for straightforward replacement

How does it stand up to outdoor use and maintenance needs?

Oyviny engineered the inlet for repeated outdoor exposure: the brass minimizes corrosion of the threaded water connection while the plastic flange resists UV damage and cracking. Routine maintenance is minimal — periodically rinse the removable screen and inspect the dust cap and seal to keep the system functioning cleanly.

• Durable brass threads resist corrosion from freshwater use
• Plastic flange resists UV degradation and impact wear
• Removable screen simplifies debris cleaning
• Spare dust cap included to protect inlet when not in use

Who is this for: This Oyviny RV City Water Inlet suits RV owners, trailer and motorhome technicians, boat owners, and DIYers who need a reliable, low-lead replacement inlet for connecting city water. It’s ideal when you want a quick field-install option that restores safe potable water access, prevents backflow, and reduces the chance of leaks with included sealant tape and mounting hardware.