Part family guide
American Standard Pressure-Balance Service Parts
American Standard services multiple pressure-balance valve generations with different cartridges and balancing units; the exact rough-in and parts diagram determine which assembly applies.
Direct answer
M952100-0070A is documented as a pressure-balancing unit for R110, R120, R115, and R125 rough-in valves. American Standard lists 023529-0070A separately as a volume-and-temperature control pressure-balance valve cartridge. Identify the rough-in and component function before selecting either part.
Fit facts
What identifies this match
Use these details together. One matching feature does not establish compatibility.
- M952100 application
- R110, R120, R115, and R125 rough-in valves
- M952100 function
- Pressure-balancing unit with diaphragm and integrated check valves
- 023529 classification
- Volume and temperature control pressure-balance valve cartridge
- Application unit
- Exact rough-in or valve model
- Critical distinction
- Balancing unit versus control cartridge
- Selection authority
- Current manufacturer product page and model parts sheet
One function does not mean one part
Pressure-balance shower valves reduce sudden temperature changes caused by shifts in supply pressure, but American Standard has used different internal architectures and service assemblies. A common purpose and branded trim do not establish interchangeability.
Start with the rough-in or valve model. The service drawing must identify whether the repair calls for a complete control cartridge, a separate pressure-balancing unit, or another assembly.
M952100-0070A in context
American Standard's current page says M952100-0070A maintains output as hot- and cold-supply pressures change. It names R110, R120, R115, and R125 rough-in valves and describes a diaphragm system with integrated check valves.
That is a narrower, testable application. Do not broaden it to every American Standard pressure-balance valve or rename it as a generic Ceramix cartridge.
023529-0070A is a separate record
The 023529 product page uses the title Volume and Temperature Control Pressure Balance Valve Cartridge. It is a distinct service record with different imagery and identifiers.
Number similarity, pressure-balance wording, or a seller's combined search page does not prove that 023529 and M952100 can replace one another.
Inspect the complete assembly
With water safely isolated, compare the original part's stem, limit-stop arrangement, locating tabs, diaphragm or spool features, seals, ports, and retention. Preserve every adapter and note which component the model diagram calls out.
If the official model record and installed part disagree, stop and resolve the valve identity with American Standard support before ordering.
Questions
Before you remove or replace the part
Which rough-ins are listed for M952100-0070A?
American Standard's current page names R110, R120, R115, and R125 rough-in valves.
Is M952100-0070A the same component as 023529-0070A?
No equivalence is established. Their current manufacturer pages classify and present them as separate service parts.
What proves a replacement relationship?
A current official model parts sheet or manufacturer cross-reference that explicitly maps the installed valve to the service part.
Reference trail