American Standard exact part record
American Standard M952100-0070A Cartridge Identification
M952100-0070A is a pressure-balancing unit documented for American Standard R110, R120, R115, and R125 rough-in valves. Use the marked part number and the fixture's service information rather than appearance alone.
Direct answer
American Standard identifies M952100-0070A as a pressure-balancing unit with a diaphragm and integrated check valves. The official product page specifies R110, R120, R115, and R125 rough-in valves. Before ordering, confirm one of those rough-in numbers in the installed valve's parts documentation and compare the complete pressure-balancing unit.
Fit facts
What identifies this match
Use these details together. One matching feature does not establish compatibility.
- Brand
- American Standard
- Documented part number
- M952100-0070A
- Part class
- pressure-balancing unit
- Documented application
- American Standard R110, R120, R115, and R125 rough-in valves
- Fixture context
- tub and shower pressure-balance valve
- Handle context
- single control handle over a concealed valve
What this record identifies
American Standard identifies M952100-0070A as a pressure-balancing unit with a diaphragm and integrated check valves. This is a part record, not the name of a complete faucet or valve. The manufacturer or authorized product documentation linked below is the basis for the application shown here.
The relevant fixture context is tub and shower pressure-balance valve, with single control handle over a concealed valve. A matching silhouette is useful for narrowing a search, but it does not establish fit.
Documented model or system relationship
The official product page specifies R110, R120, R115, and R125 rough-in valves. That relationship is narrower than a claim that the part fits every American Standard product. Product families can contain different generations, valve bodies, or handle arrangements.
Read the source's application details together with the service sheet for the installed fixture. If the fixture documentation names another part number, follow that documentation rather than this visual guide.
Checks to make before purchase
confirm one of those rough-in numbers in the installed valve's parts documentation and compare the complete pressure-balancing unit. Compare the complete identifier, connection geometry, locating features, and handle interface while the old part is available.
Also confirm whether the listing is for the internal service part alone or includes seals, clips, adapters, or other installation pieces. Package contents can matter even when the main component number is correct.
How to separate common lookalikes
Do not confuse this separately serviced pressure-balancing unit with the 023529-0070A volume-and-temperature control cartridge or another valve generation. Do not treat color, overall length, or a similar stem profile as a substitute for an application listing.
A model number from the faucet, installation sheet, receipt, or valve trim is stronger evidence than a photo match. When markings are missing, contact American Standard support with clear photos and measurements before buying.
Service context
The unit responds to hot- and cold-supply pressure changes inside a concealed shower valve; trim appearance does not identify the rough-in. Shut off the water and verify that flow has stopped before opening the fixture. Protect finished surfaces and preserve the original orientation of clips, stops, and seals.
If corrosion, a damaged valve body, or uncertain in-wall plumbing prevents a positive identification, pause the repair and use a qualified plumbing professional.
Questions
Before you remove or replace the part
Is M952100-0070A the complete faucet or valve?
No. It is the pressure-balancing unit identified in this record. The complete fixture or system is American Standard R110, R120, R115, and R125 rough-in valves.
Does M952100-0070A fit every American Standard fixture?
No such broad fit is established here. Use it only where American Standard or the linked authoritative documentation identifies M952100-0070A for the installed model or system.
Can appearance alone confirm the replacement?
No. Confirm the full part number, documented application, connection geometry, locating features, and handle interface before purchase.
What if the fixture model cannot be found?
Keep the old part, photograph its markings and interfaces, and ask American Standard support to identify it. Avoid forcing a near-match into the fixture.