One of the most important components of an RV plumbing system is the city water fill valve. This small but essential fitting connects your rig to campground water hookups, allowing you to enjoy running water without relying on your fresh water tank. If your RV’s city water inlet is leaking, cracked, or simply outdated, it’s time for a replacement. In this guide, we’ll explain what a city water fill valve does, how to choose the right one, and review the best options available today.
What Is a City Water Fill Valve?
A city water fill valve, sometimes called a city water inlet, is the point where you attach a hose from the campground water supply to your RV. It usually includes:
- Threaded hose connection: Typically a standard ¾” garden hose thread for universal compatibility.
- Built-in check valve: Prevents backflow into the city supply and keeps your RV’s plumbing pressurized properly.
- Protective flange: Mounts to the RV exterior and provides a watertight seal.
- Optional pressure regulator: Some models include a regulator to protect your RV plumbing from high campground water pressure.
Without a reliable city water fill valve, you risk leaks, poor water flow, or even damage to your RV’s plumbing system.
Quick Picks: Best City Water Fill Valves for RVs
- Valterra PF247201 City Water Inlet with Check Valve – Best Overall
- RecPro RV City Water Inlet – Best Budget Option
- Camco 36190 Replacement City Water Inlet – Best Premium Brand
Buyer’s Guide: How to Choose a City Water Fill Valve
Before buying, consider these factors to ensure compatibility and performance:
- Thread size: Most are standard ¾” GHT, but confirm before purchase.
- Built-in check valve: Essential to prevent water from flowing back into the campground line.
- Mounting style: Round vs. square flange, depending on your RV’s cutout.
- Material: Brass is durable, while plastic is lightweight and corrosion-resistant.
- Color/finish: White, black, or stainless to match your RV exterior.
- Pressure regulation: Some models include regulators, but most RVers use a separate in-line regulator for better control.
Detailed Reviews: Top RV City Water Fill Valves
Valterra PF247201 City Water Inlet with Check Valve
Who it’s for: RV owners who want a reliable, easy-to-install city water connection.
- Standard ¾” hose thread connection.
- Built-in backflow preventer.
- Durable plastic construction with UV resistance.
Pros: Affordable, widely available, trusted brand.
Cons: Plastic threads can wear over time if cross-threaded.
Final Verdict: A dependable all-around choice for most RVs.
RecPro RV City Water Inlet
Who it’s for: RVers looking for a budget-friendly replacement.
- Available in white or black to match RV exterior.
- Includes a built-in check valve.
- Compact, easy-to-install design.
Pros: Inexpensive, simple installation.
Cons: Lighter-duty construction compared to premium models.
Final Verdict: Perfect for budget-conscious RV owners needing a quick fix.
Camco 36190 City Water Inlet with Check Valve
Who it’s for: RVers who prefer a premium, brand-name option.
- Trusted Camco quality.
- UV-stabilized construction.
- Includes built-in check valve for backflow prevention.
Pros: Reliable, strong brand reputation.
Cons: Slightly more expensive than similar models.
Final Verdict: A premium upgrade for long-term RVers.
Comparison Table
| Model | Best For | Material | Price |
|---|---|---|---|
| Valterra PF247201 | Best Overall | Durable plastic, check valve included | Check Price |
| RecPro RV City Water Inlet | Best Budget | Lightweight plastic, check valve included | Check Price |
| Camco 36190 | Best Premium | UV-stabilized plastic, check valve included | Check Price |
FAQ
- Do all RV city water inlets have a check valve?
Yes, most modern ones include a built-in check valve to prevent backflow. Always confirm before buying. - Can I install a city water fill valve myself?
Yes, replacement is usually simple. Remove the screws, disconnect the old inlet, install the new one with fresh sealant or butyl tape, and reconnect the hose. - Do I need a water pressure regulator?
Yes. Campground water pressure can be too high for RV plumbing. Always use an external regulator unless your inlet includes one. - Should I choose brass or plastic?
Brass lasts longer but is heavier and more expensive. Plastic is lightweight, corrosion-resistant, and standard on most RVs.
Conclusion & Call to Action
A good city water fill valve ensures your RV plumbing stays safe, leak-free, and ready for adventure. Whether you want an affordable replacement like the RecPro RV City Water Inlet, a dependable all-rounder like the Valterra PF247201, or a premium upgrade like the Camco 36190, replacing your fill valve is a simple, inexpensive upgrade that prevents costly leaks down the road.
Upgrade your RV’s water system today and enjoy worry-free hookups at your next campground.