G-Sunny RV City Water Inlet with 90° Stainless Elbow — Brushed Nickel, All-Metal with One-Way Check Valve

G-Sunny All Metal RV City Water Inlet with 90-degree stainless elbow is a durable stainless steel RV water fill inlet that replaces plastic inlets and directs water flow with a built-in check valve for safer, longer-lasting service.

This stainless-steel city water inlet and 90° elbow from G-Sunny upgrades your RV, camper, motorhome or boat water connection with corrosion-resistant metal, a one-way check valve and simplified hose routing. Designed to fit standard connections, the assembly swaps into most exterior water inlet openings and reduces stress on hoses with its angled elbow. It’s a useful replacement whenever you want a tougher, more reliable fill inlet than plastic parts provide.

How does the G-Sunny inlet fit standard RV plumbing?

The inlet is built to mate with common RV fittings: a 3/4" GHT inner thread on the outside and a 1/2" NPT external thread on the interior side. The 3" flange diameter makes aligning and sealing to the RV exterior straightforward. Because it follows widespread thread dimensions, it works with most campsite water hoses and existing RV plumbing adapters.

• 3/4" GHT internal thread for external hose connection
• 1/2" NPT external thread for interior plumbing connection
• 3" flange diameter for secure mounting and gasket fit
• Patented stainless construction for longevity

Will the built-in check valve prevent backflow into my system?

The inlet includes a return (check) valve that permits water to flow only into your RV, helping reduce the risk of backflow when connected to campsite water. It’s a mechanical one-way valve—useful as part of a broader strategy to protect water quality but not a substitute for formal backflow prevention compliant with local codes. It helps keep water moving in the intended direction during normal use.

• Integrated one-way check valve stops reverse flow
• Reduces contamination risk during typical hookups
• Operates automatically without external power
• Complementary to approved backflow prevention devices

How does the 90-degree (135° angled) stainless elbow improve hose routing?

The included stainless elbow is shaped to relieve strain where the hose meets the inlet, preventing kinks and reducing wear at the connection point. The angled design directs the hose down or away from obstructions, keeping water flowing smoothly while minimizing pressure on fittings. Because it’s all-metal, the elbow resists deformation that can occur with plastic elbows over time.

• 135° angle reduces hose hang and stress
• Stainless construction resists rust and bending
• Smooth interior path for consistent water flow
• Easy to attach to 3/4" GHT hose threads

How difficult is installation and what tools are needed?

Installation is designed to be user-friendly: follow the included manual, mount the flange, seal with a gasket or plumber’s tape, then thread the elbow and interior plumbing. Typical installs require only basic hand tools and common sealants; no specialized equipment or welding is necessary. The unit also adds a polished, brushed-nickel finish that improves the RV exterior appearance.

• Simple flange mounting with basic hand tools
• Uses standard sealing methods (gasket, tape, sealant)
• Manual provides step-by-step guidance
• Brushed nickel finish for aesthetic upgrade

Who is this for: The G-Sunny All Metal RV City Water Inlet with 90° elbow is intended for RV, camper, motorhome and boat owners who want a long-lasting, metal replacement for plastic inlets—especially those who value corrosion resistance, easier hose routing and a built-in one-way valve. It’s well suited for DIY installers who use standard campsite water hookups and want a professional-looking, functional exterior upgrade.