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Best Shower Valves for Pex

Are you tired of crazy bathroom leaks, high water consumption, and fluctuating water temperatures? Well, we have all been there. The magic solution to all these issues is a fixture known as a shower valve. It provides for a consistent and refreshing shower experience. With this device, you are assured of proper regulation of water flow rate, pressure, and even water temperature.

Being on this page may mean that you are looking for the best shower valve brand on the market. Whatever your motive is, you are on the right site. This post aims to provide you with in-depth information on how the fixture works, their types, and some high-quality products in the market.

Best PEX Shower Valve Reviews

Here is our list of the best PEX Shower Valves in the market today;

  1. Moen S3102 U By Moen Shower Digital Thermostatic Valve, 2-Outlet
  2. Moen 2570 Rough-In Posi-Temp Pressure-Balancing Cycling Shower Valve
  3. Delta Faucet R10000-UNBX Multichoice Universal Tub And Shower Valve
  4. American Standard R121 Pressure Balance Rough Valve Body
  5. Kohler K-304-Ks-Na Rite-Temp Pressure Balancing Valve


Finding the best shower valve can be a challenging task due to their variety in the market. However, it also provides you with options from which to choose the right one suitable for your needs. It is no secret that different brands come with varying features and quality. While some might be shoddy, others stand out with practical features.

We have done an extensive research to find out the best five shower valve that money can buy. We have covered all the important factors like features and price without limiting ourselves to cheap options.


Moen S3102 U By Moen Shower Digital Thermostatic Valve, 2-Outlet

Finding the best shower valve is a hassle since there are various quality models in the market. However, Moen S3102 digital thermostatic valve is a bang for the bucks. Not only is the model of premium quality, but also packed with digitally advanced features.  With this product at hand, your space is aligned with a digitally connected world.

Thanks to the ExactTemp valve, you have smooth temperature control. Besides, you can totally control your shower in three different ways including your voice, controller, and even your cell phone.

As a digital device, it does exactly what it was meant to do. It has an app that operates the controller and offers customization.  With just a push of a button, you can create your ideal shower experience. You can personalize the presets including greeting, name, water temperature, and notifications among others. Additionally, the wide LCD screen makes it easy to see and set the gadget. You will also love that it is compatible with Alexa.

Aside from the amazing features, this shower valve comes in a compact design making it easy and flexible to install. You don’t have to place it directly behind the wall. The optional battery backup and lifetime warranty further make this product is simply the best option.


  • It has a compact design
  • It is built to last
  • The product allows seamless installation
  • This model comes with versatile compatibility
  • It provides precise temperature control


  • It is very expensive
  • The manufacturer does not sell repair parts

Moen 2570 Rough-In Posi-Temp Pressure-Balancing Cycling Shower Valve

If you are tired of experiencing pressure drops while bathing, then this might be the best option for you. Moen brand is known for their exceptional innovative designs, reliable and exceptional quality shower valves.

The Posi-Temp valve controls the water temperature in showers and tubs. This prevents any possible scalding, thereby allowing you to enjoy a refreshing shower. Multifunctionality and versatility are some of the best aspects of the Moen 2570 shower valve. You can use the transfer valve to have a shower spa with body sprays. With this model, the annoying pressure fluctuations are a thing of the past.

Still, on versatility, this fixture is compatible with IPS, CPVC, PEX, copper, and standard connections. When it comes to flexibility, this model does not disappoint. The m-pact common valve system allows you to change your decorations in the future without any need for plumbing. You can easily modify the decorative trim without causing damage to the valve. Besides, the installation process is quite easy, thanks to the 1222 cartridge that allows back-to-back installations.

Another excellent feature is the durable brass construction that can last over two decades. In fact, the brand has complete confidence in this model that it provides a limited lifetime warranty on the product.


  • It features durable construction with four ports
  • It is easy to install
  • The product features a warranty against drips, leaks, and defects.
  • It is perfect for tubs and showers


  • It only works with a shower trim kit from Moen
  • This model is quite expensive



Delta Faucet R10000-UNBX Multichoice Universal Tub And Shower Valve

Delta faucet R10000-UNBX is another renowned model that provides functionality, flair, and change in appearance without changing the entire plumbing system. Being a thermostatic shower valve, it mixes cold and hot water thus ensuring safe and comfortable shower temperatures.

The R10000 faucet comes with a high degree of versatility, making it compatible with most plumbing methods. It works with single, dual, and dual-function thermostatic cartridges. Furthermore, this model features universal connection options. This means that it accepts PEX, CPVC, or copper piping connections.

Regardless of the cheap price, this fixture is made in the USA. You are assured of high quality, durable brass construction, and consistent performance. The installation process is also quite easy since the package comes with a reliable mounting bracket and installation instructions. Besides, the plaster guard allows 90-degree cuts and protects other remaining parts of the product. Meanwhile, the plaster guard secures it in place and maintains firmer installation.

Another excellent feature is the test cap. You can test both heat and pressure of 300 psi during the installation process. It provides convenience so that you won’t need to remove and reinstall the fixture to correct the parameters. When you are thinking of the best solution to your pressure issues, shower leaks without needing any plumbing repairs, Delta R10000 is your answer.


  • It is affordable
  • It comes with a lifetime limited warranty
  • The installation process is simple and easy
  • The model supports different types of connections.
  • You can easily change the shower function without interfering with the plumbing system.
  • It is made in the USA


  • The unit may require soldering during installation
  • The package does not include the cartridge


American Standard R121 Pressure Balance Rough Valve Body

Are you looking for the best shower valve for hard water? Well, this model might be an ideal option for prolonged contact with water. With its cast brass body construction, no mineral deposits can form on the product thereby providing an excellent water flow. The durable quality provides a lifetime service and consistent performance. Besides, the diaphragm system is effective in ensuring there is no crossflow.

The ceramic disc valve cartridge is also one of its strongest features. You are assured of drip-free performance and easy temperature tuning. When it comes to versatility, this faucet is compatible with iron pipes and CPVC adapters.

The brass material is known for its durability. With this model, you don’t have to worry about fluctuation in water pressure. Besides, the shower valve provides a constant water temperature even in case of a change in supply pressure. No more accidental scalding with this product at hand. It comes with a safety feature that limits the amount of hot water that can mix with cold water. What is more, is that you can quickly reverse hot and cold-water temperatures.


  • It comes with an installation guide
  • It accommodates various styles of interchangeable trim kits
  • The cartridges are easy to disassemble to remove debris
  • The model is of excellent quality
  • It provides consistent pressure and temperature control
  • It is ideal for hard water
  • The shower valve unit is compatible with multiple piping methods


  • None to mention


Kohler K-304-Ks-Na Rite-Temp Pressure Balancing Valve

Do you need an ideal valve for high-volume installation? Then you might be in luck. This model allows back-to-back installation thus giving your bathroom a unique look and finish. Furthermore, the dedicated shower valve offers reliable temperature control and regulated water flow.

Additionally, you are assured of safety thanks to its anti-scald design. This means that you can enjoy your bath comfortably without any risk of fluctuation in water temperature. The product also features a built-in screwdriver, which is one of its rare qualities. The screwdriver is quite convenient because it allows you to turn off the water supply during repairs or replacements.

Another practical feature is the mounting tabs on the rough-in. It provides for a safe and better installation process. Plus, there is no need for extra installation parts like adjustment fittings since the connections conform to universal standards.

The rite-temp technology balances temperature and pressure thereby, preventing freezing or scalding. You can set your preferred water temperature and the system will maintain it within its set limits. More so, the diaphragm design prevents the buildup of water debris that may lead to freeze-ups.


  • It perfectly controls water flow and temperature.
  • It features an integrated screwdriver
  • The model is ideal for high-volume installations
  • This device is effortless to install
  • It stands the test of time


  • The valve trim is sold separately.
  • There are some complaints about its quality

PEX Shower Valve Buying Guide

There are several essential factors to consider when it comes to selecting the best shower valve for your needs. Having the right size is definitely an assurance of an incredible shower experience. Here are some guidelines on getting a great quality product.


While there are several types of shower valves available, they all have the same functionality of blending cold and hot water. However, some of the most common types include:

Thermostatic shower valve- This kind controls water temperature which can be pre-set at the desired temperature. It means that the water temperature remains constant even if one flushes a toilet.

Pressure balancing valve- This is the most common and aims at keeping the water flow constant. Furthermore, it balances the cold and hot water ratio.

Transfer/diverter type- Aside from being the least used type of shower valve, it changes the water flow. Transfer type changes water flow in several directions while diverters in one direction. They eliminate the need for the installation of additional pipes.

Other types include:

  • The bar mixers
  • Recess valves
  • Sequential faucet systems

Manual or Thermostatic?

The performance of a shower valve also depends on its system of work. With the thermostatic type, the system turns off the water flow once it reaches a preset temperature. This prevents any possible scalding due to high water temperatures. It also turns off the water after a certain period making it suitable for public places.

On the contrary, the manual system requires you to physically maneuver the faucet over and over again.

Controls and Outlets

Shower valves usually come with one, two, or three controls. A high number of controls means a high precision level and control of both water temperature and pressure. Single control valves mean that the cold water heats up as water flows through them. With the two control systems, you have one valve controlling the water pressure while the other one regulates temperature.

Equally, the shower valves also have one, two, or three outlets. While a single outlet is quite basic and simple, multiple outlets mean versatility and more functionality. The two-outlet model is usable in showerhead and handheld showerhead.

Read Also: How to Cut Pex

Material and Durability

A good shower valve must be of solid and leakproof construction. The ability to resist leakage is one of the main determinants of a reliable valve. Select a well-sealed and leakproof certified model for durability.

The material of construction is also a significant consideration. While most valves are made of durable plastic material, the best ones are made from brass. Others are also created from soldered metal. All in all, the choice is yours. However, ensure that your option of material will not stain, corrode or rust to prevent water pollution.

Design and Style

The design of the shower valve depends on its type. There are also various styles in the market including elegant, vintage, modern among others. You can also choose the color of these fixtures depending on the color of your bathroom interior. They come in different hues such as metallic, chrome, black, gold, and brass. The models with isolation valves are more convenient and safer.


Now that you know some of the features to keep in mind when shopping for shower valves, you understand what you get for the prices. The money you are willing to spend depends on your personal preferences, needs as well as budget.

With the high-end brands, expect to spend more money on their products. You can also be surprised with the high quality and advanced features on some of the cheap models. It is advisable to do thorough research on these products before buying them.

Frequently Asked Questions

Q1: What is a shower valve?

A: It is an essential bathroom tool that maintains the flow rate and temperature of shower water.  The models come in different styles and designs with some installed behind walls and others in the open and visible.

Q2: What is the benefit of having a shower valve?

A: Having the right shower valve ensures consistent control of water temperature in the shower. This protects you from possible scalding in case of fluctuation in water temperature. It also avoids possible leakage thus saving water.

Q3: Which is the best type of shower valve?

A: Many users find thermostatic models to be the best choice. This type allows you to set your desired water temperature, thus no chance of scalding.

Q4: Can I use a specific kind of valve in any shower system?

A: Generally, the answer is yes. However, keep in mind the design and age of your home water system including your shower to determine your style. It is advisable to consult with a professional plumber before making such decisions.

Q5: How long do shower valves last?

A: Good shower valves can last between 20 t0 30 years with proper maintenance. Modern valves are built with durability and high performance in mind. However, the old models are made with materials that are prone to wear, thereby lasting up to 15 years.

Q6: What is a Posi Temp shower valve?

A: This is a shower valve designed with sensors, making it temperature sensitive.  This means that the valve can detect cold and high temperatures, thereby preventing outbursts of cold water or accidental scalding.

Q7: How do I know if the shower valve is bad?

A: A bad valve can be easily identified by focusing on particular parts. You may notice continuous dripping of water even when you turn off the shower. A jammed, stuck, or difficult-to-twist shower handle are signs of a bad shower valve.

Final Verdict

A shower valve is not only an important tool because it manages the pressure-volume and temperature of the water passing through the shower system. It also prevents water wastage. With our detailed review of the best shower valves on market, you now understand the qualities of a high-quality device.

It is in your best interest to always choose a premium-grade shower valve for high performance. Besides, it protects the shower against damage and improves your shower experience. Having the right shower valve saves you from daily frustrations regarding the loss of heat and water wastage.

Still unsure on which to pick? Our first choice is the Moen S3102 U Digital Thermostatic Valve. It is affordable yet provides precise temperature and pressure control. Moreover, the brass construction assures durability and consistent performance. If money is not a major issue, then  Delta Faucet R10000-UNBXis an ideal choice. It comes with convenience and versatile functionality, unlike other models.