STMOUTUO

RV City Water Inlet with Check Valve - 3 4 NH Female to 1 2 NPT Male Brass

4.8(8)
$16.99$26.99

239+ bought in the past month

About this item

  • Lead-Free Brass & Durable Plastic Construction Features a lead-free brass threaded pipe for drinking water safety and a UV/impact-resistant plastic flange, resisting corrosion, road salts, and daily wear for long-lasting outdoor use.
  • Universal Fit & Standard Dimensions 3" diameter flange with 1/2" NPT male internal threads and 3/4" NH (GHT) female inlet, compatible with standard garden hoses and RV fresh water systems; 1-5/8" depth ensures easy installation.
  • Check Valve & Dust Plug for Contamination Prevention Built-in check valve prevents backflow and keeps contaminants out of the fresh water system; includes a flexible rubber dust plug to protect the inlet from dust/debris when not in use.
  • Tool-Free Installation & Easy Operation Simple screw-in replacement for old/broken inlets; easy-grip knob allows quick attachment/detachment of hoses, with precise threads to reduce leaks and ensure a secure seal.
  • Multi-Purpose Design for RV/Marine Use Ideal for RVs, campers, trailers, and marine vessels, offering reliable city water hookup with high-pressure tolerance (resists temperature fluctuations) and a 100% inspection warranty for peace of mind.
$16.99
Was $26.99Save $10.00

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Product details
MaterialBrass, Plastic
BrandSTMOUTUO
Number of Ports2
ManufacturerSTMOUTUO

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Customer reviews

4.88 ratings
  1. 588%
  2. 413%
  3. 30%
  4. 20%
  5. 10%
★★★★★

Fits Great!!!

BarbNovember 5, 2025

Fit great in my RV. Much cheaper than the local parts place, and is actually nicer. Original was leaking when pump would run. This fixed the problem. Easy install with the screws and is better than Oem. Thanks! Read more

★★★★★

Solid Brass Confidence, Minor Fit Challenge

BryceJuly 19, 2025

This inlet feels like an absolute tank - solid brass, tight threads, and no hint of leaks once installed. After cracking the cheap plastic original on our RV, I wasn’t going back to plastic again. This thing feels like it’ll survive the apocalypse and still keep water flowing. Install wasn’t quite plug and play, though. I had to custom trim the mounting panel a bit to get a good fit. Once in, the seal was tight and reassuring. The included dust plug and elbow are nice extras. It’s overkill in the best way, and I’m good with that. Read more

Review image 1Review image 2
★★★★☆

Not too shabby.

SmitkylJuly 13, 2025

Direct fit replacement for my RV water inlet. I do wish it came with a rubber gasket, but nothing some butyl tape and lap sealant cant fix, would probably use that anyways. It came with some tablet looking things, almost looks like a breathmint. I'm not sure what they are used for. Theres no instructions or coherent label on the packaging for them. Overall build quality seems great for the price. Should hold up for years. Read more

★★★★★

Fits our Coleman trailer

Anonymous ReviewerJuly 10, 2025

We stay in an RV on a full time basis and noticed that our city water inlet was leaking. We couldn’t seem to fix it correctly with new rubber rings, so we figured it was time to change it. This water inlet has everything we need. It is fairly easy to install, and it fit properly. The quality appears to be durable and well made. It seems to be functioning properly at the moment, and I haven’t noticed any leaks. The biggest test will be when we add our heated water hose during the winter. I’d recommend this. It is an affordable fix for inlet leaks. Read more

★★★★★

✨✨✨✨✨

⭐ Vine & Shine 🌿✨July 8, 2025

It comes with everything you need to replace it!!! Amazing quality perfect for my home in wheels Read more

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★★★★★

Well made brass RV water port

DanHJune 27, 2025

This RV water port is very well made of solid brass. Purchased this water port connection to replace the cheap plastic one on my RV Nautilus panel. This port includes plumber tape for the rear connection, stainless screws for mounting, and a nice rubber plug to keep contaminants out when not in use. Highly recommended, easy upgrade. Read more

★★★★★

Great way to get water into my trailer

technicalnoodlerJune 16, 2025

STMOUTUO RV City Water Inlet I am slowly building out a cargo trailer camper, and was looking for a water inlet to get water into my trailer for my sink/shower and possibly toilet install. This kit came with the essentials to get the water from outside to inside. I will of course need to add a lot more plumbing inside the trailer to make everything complete, but this kit was a perfect start. It appears to be quality materials, and everything I needed was included. Read more

★★★★★

Nicely made

J. LeoneJune 25, 2025

Much better design than the cheap all plastic factory unit. the head rotates smoothly and doesn't leak. Read more

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