Do not infer
023529-0070AH cartridge
No current direct-fit trim path was offered.
American Standard says it no longer makes a trim kit that works directly with this cartridge.
Evidence note C039 · United States
Can an old American Standard 023529 valve use current TU trim?
A manufacturer answer documents a cartridge conversion path for one exact older pressure-balance setup. The cartridge included with new trim is not part of that path.
Direct answer
For 023529-0070AH + M952100-0070A/H, change to A954440-0070A, then use TU pressure-balance trim.
American Standard’s Consumer Connection Team says it no longer makes trim that works directly with cartridge 023529-0070AH. For the old valve described with pressure-balancing unit M952100-0070A/H, it instructs the owner to replace the cartridge with A954440-0070A; that allows use of TU pressure-balance trim. The cartridge supplied with the new TU kit is for the newer system and is not used in the older valve.
Decision map
What the identifiers actually prove
Family resemblance is not compatibility evidence. Each row stops exactly where the cited source stops.
Use
A954440-0070A cartridge
Manufacturer-stated conversion cartridge for the described old valve.
The manufacturer answer names this exact replacement before moving to current TU pressure-balance trim.
Use
TU pressure-balance trim
Use only after the documented cartridge conversion.
American Standard says the converted older valve can use its TU pressure-balance trim kits.
Do not infer
Cartridge packed with the TU trim kit
Do not substitute it into the old valve.
The manufacturer answer explicitly says the new kit’s cartridge is not used because the installation has an older valve.
Before buying
Run these checks in order.
- 01
Confirm both old identifiers: cartridge 023529-0070AH and pressure-balancing unit M952100-0070A/H. If either differs, stop and ask American Standard to identify the valve.
- 02
Use the manufacturer-specified A954440-0070A conversion cartridge for the documented setup.
- 03
Choose a TU pressure-balance trim only after the old valve path is confirmed.
- 04
Do not install the Flash-system cartridge packed with the new trim into the older valve; use a qualified installer when the in-wall valve history is uncertain.
Primary evidence
Source links, not search snippets.
Evidence boundary
What this page does not prove
This is a dated reading of a manufacturer answer for the exact two-part old-valve description above. It does not prove that every valve containing a 023529-family cartridge has the same body, prior modifications, or safe conversion path. Valve identification, leak testing, waterproofing and anti-scald setup require competent installation.