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๐ฟ Upgrade your shower install game with pro-grade precision and zero fuss!
The American Standard RU101 Flash Shower Rough-in Valve combines universal inlet/outlet compatibility with a durable brass body and innovative test cap, enabling fast, secure, and pressure-tested installations. Designed for professional-grade plumbing with easy cartridge access and flexible mounting, itโs the go-to valve for millennial managers who demand efficiency and reliability in their home upgrades.





| ASIN | B07KXBFCL4 |
| Brand | American Standard |
| Brand Name | American Standard |
| Connector Type | Threaded, Solder |
| Customer Reviews | 4.5 out of 5 stars 369 Reviews |
| Exterior Finish | Stainless Steel |
| Exterior finish | Stainless Steel |
| Global Trade Identification Number | 00012611625299 |
| Included Components | Installation Guide |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | Cross Linked Polyethylene |
| Inlet connection size | 0.5 Inches |
| Inlet connection type | Cross Linked Polyethylene |
| Item Dimensions | 7 x 11.3 x 9.4 centimeters |
| Item Type Name | Shower Rough-in Valve with Universal Inlets and Outlets |
| Item Weight | 762 g |
| Item dimensions L x W x H | 7 x 11.3 x 9.4 centimeters |
| Manufacturer | American Standard |
| Manufacturer Part Number | RU101 |
| Material | Brass |
| Material Type | Brass |
| Maximum Pressure | 300 Pound per Square Inch |
| Model Number | RU101 |
| Number of Pieces | 1 |
| Number of Ports | 4 |
| Outlet Connection Size | 0.5 Millimeters |
| Outlet Connection Type | PEX |
| Set Name | Flash |
| Size | 1/2 in |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specification Met | ASME B16.34, MSS SP 72 |
| Thread Size | 1/2 |
| Thread Type | 1/2 inch NPT |
| UPC | 012611625299 |
| Unit Count | 1 Count |
| Valve Type | Ball Valve |
A**R
Good parts for repair
Use it to replace my own one. Work well. Prime arrive on time
J**X
Works great with American standard shower faucets
Works great with Aspirations shower faucet. No issue, works well with cartridge
G**G
Built like a tank
I am trying to work out the best solution for a tight retrofit and I have this rough valve along with Moen and Delta. This brand along with its trim kit is by far the beafiest and best built of the three. Its old school solid. Unfortunately its got the widest supply line connection spread so I dont know if I can make it fit but I would use these hands down in all new construction.
R**D
Quality Brass Rough In
Nice quality all brass rough in for shower and tub. (Could be used just for a shower or a tub.) Has integral stops which is nice - no need to turn off all the water in the house if you need to service the unit. Easy hook up with Copper, PEX or threaded pipe. Just remember to temporarily remove the stops before you solder anything to the shower body so you don't damage them with heat.
J**C
Product is quality and I used with Grohe shower trim kit
Apparently, American Standard has a relationship with Grohe products. The Grohe valve for my shower trim kit did not fit with the existing construction of the walls. Fortunately, I learned that the American Standard valve fits and solved the retrofitting dilemma. I am very happy with American Standard products. I replaced all my toilets with Amercian Standard brand, including replacing a Kohler toilet that kept malfunctioning.
Trustpilot
1 week ago
3 weeks ago