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Best RV Water Pressure Regulator of 2021


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Valterra A01-1117VP Adjustable

Best RV Water Pressure Regulator

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After researching a number of RV water pressure regulators, there was no doubt that the Valterra A01-1117VP was the best of the best. It wins in quality, design, and effectiveness. An overwhelming number of reviews talk about how long this regulator lasts. Once you buy this, you probably won't have to buy another.

We love how accurate the gauge is. There is no guessing - it tells you what the pressure is right on the dot. It has a screen for filtering out debris, even though the screen is stainless steel. However, many regulators don't come with a screen at all, so having one is a big plus.

There is a lot to go over about this RV water pressure regulator. It stands out from the crowd and tends to be a favorite among RVers.

Best RV Water Pressure Regulators

Most people never think about how much pressure their RV water system can take versus the typical city water pressure. This could be a big mistake!

RV water pressure regulators, also known as pressure-reducing valves (PRV), make sure that your water is at a safe pressure when it reaches your pipes faucets, showers, and toilets in your RV. Ensuring that you don't spring a leak after connecting to the water supply.

At some point, you'll probably need to replace your RV water pressure regulators. There are a lot of products out there, but not all of them are good. In this guide, we'll tell you everything you need to know about water pressure regulators. We did a lot of research and reviewing of available regulators and found seven that were superior to the others on the market. We'll tell you about those seven and why we chose the Valterra A01-1117VP adjustable RV water pressure regulator as the overall best water pressure regulator.

Looking for the best water pressure regulator for your RV?

  • Why you need a water pressure regulator to protect your RV from damage
  • How these devices work with your water supply to keep the pressure at a safe level
  • Different types of water pressure regulators
  • The best water pressure regulators on the market
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What is an RV Water Pressure Regulator?

An RV water pressure regulator is a small device that lowers the water pressure before it enters your RV’s plumbing system. These devices are usually very small – only a few inches long – but don’t let their size fool you. They do a big job, and they are essential for protecting your recreational vehicle’s plumbing system.

Best RV Water Pump Banner

Most water pressure regulators fit as standard size hose, and they screw on to the spigot with no problems. These are “easy to install” – screw it on and then screw your hose onto the other end. If you have a good one, it’ll automatically do its job.

RV water pressure regulators look very similar to each other. The main differences lie in superficial features such as the size, color, material that it’s made from, etc. However, don’t let this trick you into picking any water regulator or the cheapest water regulator. Just because they look the same doesn’t mean they’ll perform the same.

How Does an RV Water Pressure Regulator Work?

The mechanics of an RV water pressure regulator are fascinating. You have this tiny device that drops water pressure down by 50 percent or more. How can this small device be more powerful than all that rushing water?

Inside the RV water pressure regulator, there multiple small parts. They are:

  • Inlet
  • Seat
  • O-rings
  • Throttling stem
  • Spring
  • Cup
  • Diaphragm
  • Outlet

These parts are tiny. It’s safe to call them micro parts. When water comes from the water supply, it enters the water pressure regulator through the inlet. From there, the water flow is split and rushes around the left and right sides of the seat and into the throttling stem. Think of the seat like a fork in the road, and the throttling stem like a tunnel.

The springs work to keep the throttling stem area open for the water to flow through. The throttling stem is attached to the diaphragm at the other end, and as the water rushes toward it, the pressure of the water causes the springs to compress, and the springs press on the diaphragm to close it. It will close just enough to limit the water pressure to the desired level. When the water comes out of the outlet, the pressure has been significantly reduced.

As you can see, an RV water pressure regulator might be small, but it has a complex system inside to limit water pressure. Every single piece must work, or the water pressure regulator won’t be any good to you.

Why You Need a Water Pressure Regulator for Your RV

If you plan to use the water in your RV (and we’re pretty certain you will), you need a water pressure regulator. There is no getting around it if you plan to use city water hookups as your go-to water source. City water is commonly anywhere from 100 to 150 PSI (pounds per square inch). RVs are only designed to handle somewhere in the area of 50 to 60 PSI. If you use city water without a water pressure regulator, it will be like sending a tsunami to your sink to get a glass of water.

Water pressure that is too high can cause a lot of damage to the plumbing system in your RV. It can cause cracks, leaks, and eroding of pipes. Your pipes could burst, or it may cause a noise commonly referred to as “water hammer.” If you hear it, you’ll know. It’s loud and unsettling. All of this can be prevented and give you peace of mind with a great water regulator.

Types of RV Water Pressure Regulators

There are three types of water pressure regulators: standard (sometimes called in-line), high water flow, and adjustable. All three types are technically in-line regulators. They perform differently.

The high flow water pressure regulator is just as the name states – a higher flowing product. In other words, it allows a higher PSI than the standard. Typical high-flow models allow between 50 PSI and 60 PSI, while standards allow between 40 and 50. High water flow regulators are not recommended for older RVs.

Adjustable water pressure regulators are also just as the name states. These can adjust anywhere from 0 PSI up to an insanely high PSI, usually about 160. While the flexibility is nice to have, you must be careful with these, so you don’t accidentally set the pressure too high.

RV Water Regulators – Key Features to look out for

PSI Capacity

The main feature you want to look for is pressure and flow. Standard regulators will be between 45 PSI – 50 PSI. High-flow regulators will be between 50-60 PSI. Adjustable regulators will be between 0-160 PSI.


RV Water pressure regulators are made from three types of material: plastic, brass, or stainless steel. Occasionally, you may find a regulator made from copper (rare). Plastic water pressure regulators will be bargain buys. They won’t last as long, but they are good for people on a budget or people who won’t use them very often.

Copper is a great metal that won’t rust or corrode, but it’s softer than steel, so it may lose shape, meaning that it might not last as long. Brass is also softer than steel, but it’s harder than copper. Like copper, it won’t rust or corrode. Stainless steel is the most durable material, and although it’s “stainless,” meaning it resists rust and corrosion, at some point in its long life, it will eventually give in. Don’t worry. It will be a long time before that happens.

In short, stainless steel is the most durable choice. Plastic is an economical choice. Brass construction is a great choice also.

Lead Levels

Water pressure regulators will be labeled as lead-free or low lead. Obviously, the lead-free regulators are ideal, but even these may have a tiny percentage of lead. According to the Reduction of Lead in Drinking Water Act (RLDWA) and the Community Fire Safety Act, lead-free is defined as less than .25 percent lead.

Low-lead regulators may have slightly more than .25 percent lead, but not much more. If you’re concerned about this, stainless steel is genuinely lead-free.

Screen Filter

Some water pressure regulators include a screen filter that helps to filter debris out of water. This isn’t necessary, but it is extra protection to make sure you have clean drinking water.

Best Water Regulators for RV’ing Reviews

KepooMan Water Pressure Regulator

Best Reliability

Water Pressure Regulator, Brass Lead-free Adjustable RV Water Pressure Reducer with Guage and Inlet Screened Filter, 160 PSI Gauge with oil, By Kepooman (Gauge with oil)

The KepooMan water pressure regulator is an adjustable regulator made from lead-free brass water pressure regulator. It has excellent features, and it’s known to be very durable. On top of that, it works well in extreme weather, so it’s suitable for many different seasons and environments. The working temperature range is 14°F to 248°F (-10°C to 120°C). This means it could even handle boiling water (although that would probably never happen).

The water pressure regulator has all the great features we discussed earlier. It adjusts from 0 PSI up to 160 PSI and has a built-in gauge so you can be sure about the pressure. It also has a screen to filter out any debris that might be in the water. This water pressure regulator is reliable and is perfect for protecting your delicate plumbing system.

  • PROs

    • Great in extreme temperatures.
    • Pressure gauge is oiled to reduce friction.
    • Powder-coated screw is easy to turn.
  • CONs

    • Oil can sometimes leak a little bit.
    • At extremely low temperatures, the gauge is sometimes a little bit off.

Bottom-Line: This is a very reliable water pressure gauge that is affordable and durable.

Camco 40143 Plastic Water Pressure Regulator

Best RV Budget Choice

Camco 40143 Plastic Water Pressure Regulator - Prevents Damage To RV Water Hoses and Pumps From Inconsistent Water Pressure, Lead Free

The Camco 40143 is a budget-choice water pressure regulator that may not be as durable as others but gets the job done. It’s made from ABS (acrylonitrile butadiene styrene) plastic, which automatically makes it completely lead-free. It drops water pressure levels down between 45 PSI and 50 PSI.

We like the two grooved handles on the side of the regulator. This makes it easy to grip while screwing it on or off. The blue color is also lovely and bold – when storing it, it won’t get lost in a sea of metal parts. You’ll be able to spot it quickly. Out of the budget water pressure regulators, this is a great choice.

  • PROs

    • Interesting, bold blue color.
    • Grooved handles for easy handling.
    • Very inexpensive.
  • CONs

    • Tends to leak.
    • Will crack in cold temperatures.

Bottom-Line: It’s a budget water pressure regulator, so it’s suitable for someone who needs a few uses out of it or someone who won’t be using it regularly.

Valterra A01-1122VP High Water Flow Brass Water Regulator

Best High Flow Regulator

Valterra RV Hi-Flow Water Regulator, Lead-Free Brass Hi-Flow Water Regulator for Camper, Trailer, RV Plumbing System, 50-55 psi

Valterra is a company that is well-known and recognized for its commitment to producing quality products. This high water flow rate model is just what you need to kick your water pressure up a notch. It consistently keeps the water pressure between 50 to 55 PSI. It’s made of high-quality brass and is lead-free, as indicated by the orange cap (exclusive to Valterra).

The regulator has a screen to filter out debris from the water. The screen is not stainless steel, but it still does a fantastic job of filtering out those unwanted particles. The body of the water pressure regulator is designed with a textured surface all around, so you’ll have a good grip when screwing and unscrewing it. Overall, this is an exceptional product.

  • PROs

    • Lead-free.
    • Easy-grip textured surface.
    • One-year warranty.
  • CONs

    • Screen is not stainless steel.
    • Leaks a little from the swivel.

Bottom-Line: If you prefer a high flow water pressure regulator, this one will provide you with the most consistent water flow and will last a long time.

Valterra A01-1124VP Regulator/Gauge Combo

Most Accurate Gauge

Valterra A01-1124VP Brass Water Regulator/Water Pressure Gauge Combo (Carded)

Here we have another Valterra regulator because their products are amazing. This water pressure regulator is a standard one. It drops the pressure between 40-50 PSI. Like the previous one, it’s made from high-quality, lead-free brass, but this one has a built-in gauge.

The gauge on this regulator is one of the most accurate built-in gauges you’ll find. It’s not oil-filled, but it still works great. We also like that this has a textured body for easy installing. Lightweight, dependable, and easy-to-handle sums up this water pressure regulator. It upholds Valterra’s high standards in quality so that we would recommend this to anyone looking for an affordable water pressure regulator.

  • PROs

    • Highly accurate gauge.
    • Textured body.
    • High-quality brass.
  • CONs

    • Gauge is placed in a spot that makes it difficult to grip the body of the regulator.
    • No screen.

Bottom-Line: Accuracy is key when it comes to this Valterra water pressure regulator.

Camco RV Brass Inline Water Pressure Regulator

Most Compact

Camco (40055) RV Brass Inline Water Pressure Regulator- Helps Protect RV Plumbing and Hoses from High-Pressure City Water, Lead Free

Camco proves that a brass regulator can come at a budget price. This tiny little regulator delivers a performance that a regular-sized regulator does. It’s made of lead-free brass, and it’s an excellent value for the price.

The water pressure regulator is standard and reduces the pressure down to between 40-50 PSI.

It has a textured midsection to make it easy to screw onto the spigot. It also features two small wing-shaped handles that make it easy to remove it from the spigot. It’s an elementary water pressure regulator that’s easy to use and effective.

Keep in mind that it’s, tiny so keep an eye on it because it could be easy to lose.

  • PROs

    • Textured mid-section.
    • Wing-like handles for easy removal.
    • High-quality brass material.
  • CONs

    • No screen.
    • Easy to misplace it.

Bottom-Line: This is for people on a budget – it’s inexpensive without sacrificing quality.

Twinkle Star RV Water Pressure Regulator Valve

Best RV Water Pressure Regulator for Safety

Twinkle Star RV Water Pressure Regulator Valve with Gauge and Inlet Screened Filter for Camper Travel Trailer

Brass models with gauges are very popular, so it’s no surprise to see another brand with this type of regulator. What sets the Twinkle Star water pressure regulator apart from the others is the fact that it comes with a stainless-steel screen. This is preferred since the screen will be subjected to a lot of water. You won’t have to worry about it rusting.

Like most adjustable water pressure regulators, this one goes from 0 PSI to 160 PSI. The gauge actively tells you the pressure level, so you don’t have to worry about overpowering your RV’s plumbing. We love the fact that it’s lined with leak-proof PTFE tape. This is a unique feature that most other manufacturers don’t include. The gauge is also designed so that it’s explosion-proof in case the regulator ever fails, and the water pressure becomes too powerful.

There are some small design-related things we would change about the regulator, but nothing that has any effect on the quality and longevity of the device.

  • PROs

    • Stainless steel screen.
    • Adjustable to your perfect PSI.
    • Explosion-proof gauge for extra safety.
    • Lined with leak-proof tape.
  • CONs

    • No red on the gauge to indicate danger zone.
    • Need a Phillips screwdriver to adjust pressure.

Bottom-Line: This water pressure regulator has a few security features that make it the safest choice.

Valterra A01-1117VP Brass Lead Free Adjustable Water Regulator

Best RV Water Pressure Regulator

Valterra RV Water Regulator, Lead-Free Brass Adjustable Water Regulator with Pressure Gauge for Camper, Trailer, RV Plumbing System

There is a reason that this Valterra regulator is pricey. That reason is quality. This is one of Valterra’s most heavy-duty water pressure regulators. It’s built like a tank, yet it’s easy to use. This regulator is a great investment, which is why we named it as the overall best RV water pressure regulator.

One of the best features is the nut on the top that you use to adjust the water pressure. You will need a flat-head screwdriver to turn it. However, it’s powder-coated for an easy grip and to prevent rusting. Other great features include a screen, lead-free brass, and an excellent built-in gauge.

This gauge also does not have red to indicate danger, but we can overlook that due to its impressive build. If you want a leak-free, durable, heavy-duty water pressure regulator, you’ve found one.

  • PROs

    • Lined with leak-proof tape.
    • Powder-coated top to prevent rusting.
    • Gauge is in a good spot – not in the way.
  • CONs

    • Screen is not stainless steel.
    • Expensive compared to others.

Bottom-Line: A regulator this good is worth spending a little extra on because, in the long run, it will pay for itself.

Last update on 2021-06-25 / Affiliate links / Images from Amazon Product Advertising API

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