American Standard Flash Shower...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$107.59
$59.19
American Standard Flash Shower Rough-In Valve With Universal Inlets/Outlets - AMS-RU101

American Standard Flash Shower Rough-In Valve With Universal Inlets/Outlets - AMS-RU101

(No reviews yet) Write a Review

Model: RU101
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$107.59
$59.19
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like
Flash Shower Rough-In Valve With Universal Inlets/Outlets
  • 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 test cap/ cartridge in place and eliminates need for screws. Flats make it simple to loosen ring for quick, easy insertion/removal of test cap/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.
  • Back-to-Back Capability: Hot and cold can be reversed quickly and easily.
  • 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.
  • 1/2" Male NPT/Sweat inlets/outlets accept 1/2" copper, 1/2" iron pipe, PEX or CPVC adapters
  • Cartridge Ships with Trim

Manufacturer Resources

Spec Sheet

Product Specs

Product Group:
Commercial
Product Subgroup:
Parts and Accessories
Product Type:
Rough In Valve
Department:
Plumbing
Parts and Accessories Type:
Rough-In Kit
Application:
Toilet

American Standard RU101 – Frequently Asked Questions

1) What pipe types can I connect to the American Standard Flash RU101 shower rough-in valve?
The RU101 has 1/2 inch male NPT/sweat inlets and outlets, so it takes 1/2 inch copper sweat, 1/2 inch iron pipe, or PEX and CPVC using the appropriate threaded adapters. That covers most residential and commercial supply systems without having to order a version specific to your piping.
2) How deep can the RU101 rough-in valve be set behind the finished wall?
Rough-in range runs 1-3/4 inches to 2-3/4 inches from the finished wall to the back of the valve. That one inch of tolerance is what lets you set the valve before the tile or wallboard thickness is final. The flat back lets the body sit flush against a cross brace, and the plaster guard doubles as mounting support on thin-wall installs.
3) Does the American Standard RU101 shower valve come with the cartridge and trim?
No. The RU101 is the rough-in valve body only, and the cartridge ships with the trim kit, not with the valve. Order the Flash trim separately for the finish and handle style you want. The valve ships with a test cap in place of the cartridge so you can pressure test before the trim ever shows up.
4) Can I pressure test the RU101 rough-in valve before the cartridge goes in?
Yes, and you don't have to pull a cartridge to do it. The flush plug lets you flush the lines without cross flow and holds a test at 200 psi with air or 300 psi with water. The stainless steel retaining ring has flats on it, so the test cap loosens by hand or with a wrench instead of screws when you're ready to swap in the cartridge.
5) Can one RU101 valve be used for both left-hand and right-hand hot supplies?
Yes. The Flash RU101 has back-to-back capability, meaning hot and cold can be reversed at the valve. That matters on back-to-back bathrooms in apartments and hotels where the plumbing mirrors from one unit to the next, and it means you stock a single valve instead of two orientations.
6) Is the RU101 valve body brass, and will it hold up in hard or high-chloride water?
The body is cast DZR (dezincification resistant) brass, which is specified to resist corrosion where water has high chloride content or high pH. That is the reason to pick it over a plain brass or plastic body on a multi-family or institutional job where you won't get back into the wall for decades.
7) Do I need a separate plaster guard for the American Standard Flash rough-in valve?
No, the plaster guard comes as part of the RU101. It protects the valve during wall finishing and acts as a depth guide while you set the valve. On thin-wall construction it can also carry the mounting support, so you are not fabricating backing for it on site.
8) What exactly am I ordering with part number RU101?
RU101 is the American Standard Flash shower rough-in valve, the in-wall body with 1/2 inch universal inlets and outlets. It is sold as a rough-in kit with no finish, since nothing on it is visible once the wall is closed. Trim and cartridge are a separate order.
How fast can I get the American Standard RU101 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the American Standard RU101 come with a warranty?
Absolutely. The American Standard RU101 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the American Standard RU101?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the American Standard RU101 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!