American Standard Flash Shower...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$107.59
$63.19
American Standard Flash Shower Rough-In Valve With Stub-Outs - AMS-RU102

American Standard Flash Shower Rough-In Valve With Stub-Outs - AMS-RU102

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Model: RU102
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$107.59
$63.19
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Flash Shower Rough-In Valve With Stub-Outs
  • 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
  • Stub-out Connections: Specially designed connections to work with press-connect fittings for fast and easy 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" Stub-out inlets/outlets accept 1/2" press-fit fittings
  • 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
Country of Origin:
Mexico

American Standard RU102 – Frequently Asked Questions

1) What rough-in depth does the American Standard Flash RU102 shower valve allow from the finished wall?
The RU102 has a rough-in range of 1-3/4 inches to 2-3/4 inches, measured from the finished wall to the back of the valve. That one-inch window is what lets you set the valve on the cross brace before the wall thickness is finalized. The flat back sits flush against the brace, and the plaster guard doubles as a depth guide during setting, so you can also use it as mounting support on thin-wall builds.
2) Can I use press-connect fittings on this shower rough-in valve, or do I have to sweat it?
The stub-outs are 1/2 inch and are made to take 1/2 inch press-fit fittings, so no torch work is needed at the valve. American Standard specifically designed these stub-out connections for press-connect fittings.
3) Does the American Standard RU102 rough-in valve come with a cartridge and trim?
No. The cartridge ships with the trim, not with the RU102 valve body, so you need to order the matching Flash trim kit separately to complete the shower. What you get in the rough-in is the cast brass valve body with stub-outs, the flush plug, the stainless retaining ring, and the plaster guard.
4) How do I pressure test the lines before the trim goes on?
Use the flush plug that comes in the valve. It lets you flush the lines without cross flow and without pulling a cartridge, and it can be tested with air to 200 psi or water to 300 psi. The stainless steel retaining ring has flats on it so the test cap or cartridge loosens by hand tool rather than screws, which makes the swap at trim-out quick.
5) What happens if the plumber pipes the hot and cold backwards on this valve?
It is recoverable. The RU102 has back-to-back capability, meaning hot and cold can be reversed quickly and easily, so a valve piped in reverse or set in a back-to-back bathroom layout does not have to be cut out and re-piped.
6) Is this valve body going to hold up in hard or high-chloride municipal water?
The body is cast DZR brass (dezincification resistant), chosen specifically to resist corrosion from high chloride and high pH water. For a property manager or hospital MRO buyer standardizing on one rough-in across a building, that is the spec that matters for in-wall parts you cannot get back to.
7) What is the American Standard part number for the Flash shower rough-in with stub-outs?
The manufacturer part number is RU102. It is the stub-out version of the Flash rough-in valve, supplied with no applied finish since the body is buried in the wall and the visible finish comes from the trim kit.
How fast can I get the American Standard RU102 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 RU102 come with a warranty?
Absolutely. The American Standard RU102 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 RU102?
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 RU102 from ZenSupply?
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