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 PEX Inlets/Universal Outlets for Crimp Ring System - AMS-RU107

American Standard Flash Shower Rough-In Valve With PEX Inlets/Universal Outlets for Crimp Ring System - AMS-RU107

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Model: RU107
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$107.59
$59.19
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Flash Shower Rough-In Valve With PEX Inlets/Universal Outlets for Crimp Ring System
  • 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
  • PEX Connections: Fast and easy installation without adaptors reducing leak points.
  • 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" PEX crimp inlets/Universal outlets (ASTM F1807)
  • Cartridge Ships with Trim

Manufacturer Resources

Spec Sheet

Product Specs

Product Group:
Washroom/Bath Accessories
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 RU107 – Frequently Asked Questions

1) What is the rough-in depth range on the American Standard Flash RU107 valve?
1-3/4 inches to 2-3/4 inches from the finished wall surface to the back of the valve. That one inch of tolerance covers most stud-and-drywall walls and tile buildups without shimming the cross brace. The plaster guard doubles as a depth guide while you set it, and on thin-wall builds it can carry the valve as mounting support.
2) Can I pressure test the shower rough-in before the walls close up?
Yes, and that is the point of the flush plug. With the plug in place the RU107 can be tested to 200 psi with air or 300 psi with water, and the lines can be flushed without cross flow between hot and cold. No need to pull a cartridge to do it.
3) I piped the hot and cold backwards. Do I have to redo the supply lines on this valve?
No. The Flash RU107 body has back-to-back capability, so hot and cold can be reversed quickly at the valve rather than re-running the supplies. This is the usual fix for back-to-back bathroom layouts where the supplies come in mirrored.
4) How does the RU107 valve mount to the framing?
It has a flat back so it sits flush against a cross brace between studs, which makes for a solid mount without packing behind it. The plaster guard can also serve as mounting support on thin-wall installations. The test cap and later the cartridge are held by a stainless steel retaining ring with flats, so there are no screws to deal with and it loosens with a wrench for quick swaps.
5) Is this valve body suitable for buildings with aggressive or high-chloride water?
The RU107 body is cast DZR (dezincification resistant) brass, chosen to resist corrosion where chloride levels and pH run high. That is the reason multifamily and institutional spec writers pick a DZR body over standard brass for long-life rough-in behind a finished wall.
6) Does the American Standard RU107 come in a finish to match my shower trim?
There is no finish on it, and none is needed. The RU107 is the in-wall rough-in valve body only; everything visible after the wall closes comes from the separate trim kit, which is where you choose chrome, brushed nickel or whatever the job calls for. It ships as a single unfinished configuration.
How fast can I get the American Standard RU107 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 RU107 come with a warranty?
Absolutely. The American Standard RU107 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 RU107?
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 RU107 from ZenSupply?
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