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Internet # 309094261

Model # RU101

Store SKU # 1004207428

Flash Shower Rough-In Valve with Universal Inlets/Outlets

$65.78
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  • Made of durable brass suitable for prolonged contact with water
  • Features an exclusive plaster guard to prevent valve damage
  • Flat back allows valve to be flush mounted for easy installation
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Product Details

About This Product

Designed for fast and efficient installation, the Flash Shower Rough-in Valve provides flexibility for every situation. The Rough-in Valve features a flat back and compact body to ensure a secure and simplified install process that can accommodate smaller spaces. A flush plug is included, which allows both Hot & Cold to be flushed simultaneously for quicker installation and less downtime. Stainless steel fixation ring, with sure-grip flats, keeps flush plug and cartridge in place without screws. Cartridge sold separately.

Highlights

  • Flush Plug: Eliminates the need to remove cartridge during installation and allows installer to flush the lines without cross flow. Can be tested using flush plug with air (200 psi) or water (300 psi).
  • Stainless Steel Retaining Ring with Flats: Secures flush plug/ cartridge in place and eliminates need for screws. Flats make it simple to loosen ring for quick, easy insertion/removal of flush plug/cartridge.
  • Flat Back: Allows valve to be mounted flush against cross brace for easy and solid installation
  • Cast DZR Brass Valve Body: Resists corrosion due to high chloride and pH levels in water
  • Exclusive Plaster Guard: Plaster guard is designed to protect valve and act as a guide during installation. It can serve as mounting support for thin-wall installations.
  • Wide Rough-in Range: From 1-3/4" to 2-3/4" from finished wall to the back of the valve.
  • Cartridge Ships with Trim
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  • Return Policy

Product Information

Internet # 309094261

Model # RU101

Store SKU # 1004207428

Specifications

Dimensions

Inlet Diameter (In.)

1/2

Outlet Diameter (In.)

1/2

Details

Application

Rough-In valve

Compatible Pipe Material

Copper

Connection

Sweat x Sweat

Features

Adjustable

Indoor/Outdoor

Indoor

Material

Brass

Maximum Pressure (PSI)

300 PSI

Maximum Working Temperature (F)

160

Pack Size

1

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

Limited Lifetime Warranty

Questions & Answers

Is it the same as GrohSafe 3.0 1/2 in. Universal Inlets/Outlets Pressure Balance Rough-In Valve with Service Stops?
ByDec 2, 2025
1 Answer | 
Answer This Question

Hello YULA, Thank you for reaching out to American Standard. Yes, it is. If you have any further questions, please reach out to us using the Contact Us form or Chat option on our website, and an American Standard Consumer Connection Advisor will be happy to assist you. We are available Monday - Friday between 8AM - 7PM ET. Sincerely, Your American Standard Consumer Connection Team (americanstandard-us.com/contact-us)

By|Dec 2, 2025


    I am putting new hardware in my shower/tub but the previous was kohler and apparently it’s not compatible with what I bought (American standard Rumson item 1005437741). Is RU101 the correct valve? Thanks
    ByOct 22, 2025
    1 Answer | 
    Answer This Question

    Hello Marcus, Thank you for reaching out to American Standard. The 7417502.243 does use the RU101 valve. If you have any further questions, please reach out to us using the Contact Us form or Chat option on our website, and an American Standard Consumer Connection Advisor will be happy to assist you. We are available Monday - Friday between 8AM - 7PM ET. Sincerely, Your American Standard Consumer Connection Team (americanstandard-us.com/contact-us)

    By|Oct 24, 2025


      How to identify what rough in valve is in my shower
      ByJun 10, 2025
      1 Answer | 
      Answer This Question

      Hello Anonymous, Thank you for reaching out to American Standard. We can help identify the rough valve in your wall with a picture. Please reach out to us using the Contact Us form or Chat option on our website, and an American Standard Consumer Connection Advisor will be happy to assist you. We are available Monday - Friday between 8AM - 7PM ET. Sincerely, Nicole Your American Standard Consumer Connection Team (americanstandard-us.com/contact-us)

      By|Jun 10, 2025


        Is this valve for shower only?
        ByJan 26, 2025
        1 Answer | 
        Answer This Question

        Hello Marianb, Thank you for reaching out to American Standard. No, it is not for a shower head only. You can also have a tub spout attached to this shower valve. If you have any questions, please reach out to us using the Contact Us form or Chat option on our website, and an American Standard Consumer Connection Advisor will be happy to assist you. We are available Monday - Friday between 8AM - 7PM ET. Sincerely, Your American Standard Consumer Connection Team (americanstandard-us.com/contact-us)

        By|Jan 28, 2025


          Hi, after installing this valve I have low pressure and volume to shower head and spout, is there a way to increase the pressure ? The pressure and volume in old shower were good at head and spout and pressure in house is very good in all other faucets
          ByJan 19, 2024
          1 Answer | 
          Answer This Question

          Hello Sam4dpd, Thank you for reaching out to American Standard. I’m sorry to hear of the issue you have had with your American Standard RU101 . I know that situation can be very frustrating. There isn't a way to increase the pressure but there may be a problem with the pressure balance cartridge. Please contact us at 1-855-815-0004 and an American Standard Consumer Connection Advisor will be happy to assist you. We are available Monday - Friday between 9AM - 6PM ET. Sincerely, Nicole Your American Standard Consumer Connection Team

          By|Jan 3, 2026


            Are there any STEP or RFA files available to use for BIM processes?
            BySep 7, 2022
            1 Answer | 
            Answer This Question

            Ian C, Thank you for reaching out to American Standard. I am very sorry but we do not have any files to use for BIM processes. Sincerely, your American Standard Consumer Connection Team

            By|Sep 8, 2022


              Will rough valve fit in a 2x3 wall ?
              ByFeb 22, 2019
              1 Answer | 
              Answer This Question

              This valve is made to fit a wall of 1-3/4" MIN – 2-3/4" MAX.

              By|Feb 25, 2019


                We have the Times Square trim kit and the RU101 valve. Which cartridge is compatible?
                ByJan 22, 2019
                1 Answer | 
                Answer This Question

                We would need some more information. Please call us at 800-442-1902.

                By|Aug 16, 2021


                  Viewing 1-8 of 8

                  Customer Reviews

                  4.7 out of 5

                  • 4.7 out of 17 reviews
                  • 100% recommend this product
                  Filter by:
                  Showing 1-10 of 17 reviews
                  Used
                  I bought this as a bundle and it’s clearly used/open. HD, STOP SENDING ME USED ITEMS!
                  by
                  Response from AmericanStandardMay 20, 2026
                  Hello Anonymous, Thank you for reaching out to American Standard. We're very sorry to hear that the Flash Shower Rough In Valve you purchased has been opened and used. I know that would be upsetting. If you have any product questions, please reach out to us using the Contact Us form or Chat option on our website, and an American Standard Consumer Connection Advisor will be happy to assist you. We are available Monday - Friday between 8AM - 7PM ET. Sincerely, Your American Standard Consumer Connection Team (americanstandard-us.com/contact-us) AmericanStandard
                    Quick and easy install
                    [This review was collected as part of a promotion.] Love this brass body makes it feel like excellent quality. The install was easy to do and wasnt confusing, pretty simple setup but works like a dream conoared to the one i had in there before. The test worked well so i moved to install my trim.
                    by
                      • Recommended
                      Works great
                      [This review was collected as part of a promotion.] This Flash valve - Flash® Shower Rough-In Valve With Universal Inlets/Outlets was installed in our kids bathroom and it is a great quality valve and was easy for us to install per instructions. It works great and I am very pleased with it.
                      by
                        • Recommended
                        Excellent shower valve body of great quality
                        [This review was collected as part of a promotion.] This American Standard shower valve body is easy to install for the rough-in assembly when remodeling a shower. The male threaded ends makes it easy to to atrach female fittings or to do the other way of sweating in pipe on any of the ends. So the balve body gives you two different ways you could go about installing the valve body assembly. The brass assembly is very strong and durable, not of cheap quality at all. I have installed many valve bodies like this one before ss a professional plumber and it is one of the best ones you could get, especially with the different ways there are to install it. The lock in plug is good to have instead of putting the actual cartridge in to.make it easier for rough-in plumbing inspections. American Standard has always made great products, and this is judt another one of the high quality excellent products that they make.
                        by
                          • Recommended
                          Good part
                          [This review was collected as part of a promotion.] I can’t say a whole lot about this valve other then it works as it should and is threaded for easier installation. It looks to be of great quality and functions well. I would definitely recommend this part
                          by
                            • Recommended
                            Quality made
                            [This review was collected as part of a promotion.] Looking forward to years of reliable preference from this quality made universal shower valve. The product is made of brass with great accuracy on each thread insuring years of No- leak service usage.
                            by
                              • Recommended
                              Excellent solid brass flash shower rough in valve
                              [This review was collected as part of a promotion.] Solid construction. Well built and beautifully packaged. Operates with ease and precision. The solid brass components were clean and burr free in regard to the threads. Easy to install. The flow valves worked well, no catch when switching from hot to cold, on to off.
                              by
                                • Recommended
                                Valve not necessary for installation.
                                by
                                • Verified Purchase
                                Thin wall
                                [This review was collected as part of a promotion.] Excellent for a thin wall, mine was a 2x3 studded wall and fit great, easy to install
                                by
                                • Verified Purchase
                                This customer chose to rate the product and not provide text.
                                by
                                • Verified Purchase
                                Showing 1-10 of 17 reviews

                                Compare Key Features

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                                Product Snapshot

                                Ideal for DIYers and pros seeking easy installation and durable brass construction. Simplifies plumbing with a flush plug for efficient flushing and a flat back for secure mounting.
                                Ideal for preventing scalding, this mixing valve delivers controlled temperature water up to 120°F, ensuring user safety.
                                Ideal for preventing scalding and increasing hot water capacity, ensuring safety and efficiency. Protects against legionella bacteria growth.

                                Flow Rate

                                Temperature Control Range

                                up to 120° F

                                Scald Protection

                                Pressure Balance

                                Thermostatic Control