American Standard Volume and Temperature Control Pressure Balance Valve Cartridge - AMS-23529

The 023529-0070A is a pressure balance valve cartridge that handles both volume and temperature control in an American Standard tub and shower valve. It's the internal working part, not a trim kit, so it comes with no decorative finish. If your shower is running hot when a toilet flushes elsewhere in the building, or the handle no longer holds a set temperature, the cartridge is the part that does that job.

No. This is an American Standard cartridge, and pressure balance cartridges are brand and valve-body specific: the ports, cartridge nose, and retainer clip are cut for the body they were made for. If the valve body in the wall isn't American Standard, you need that manufacturer's own cartridge. Pull the old cartridge and match the part before ordering if you aren't sure whose valve is in the wall.

No finish to choose. The cartridge ships in one configuration only, listed as NO FINISH, because it sits entirely inside the valve body where nothing shows. Finish only matters for the trim (handle, escutcheon, tub spout), which is ordered separately and is not included with this part.

That's the normal use for it. Where a building was fitted out with American Standard pressure balance tub and shower valves, one cartridge part number covers every one of those openings, so a property manager or MRO buyer can carry a small quantity on the shelf and settle temperature complaints the same day instead of ordering per unit. It's cataloged under a single part number, 023529-0070A, with no finish or handing variation to track.

Cartridge only. The 023529-0070A is the internal valve component; the handle, escutcheon plate, sleeve, and any screws or set screws for the trim are separate. On a service call plan on reusing the existing trim, and order trim separately if the old plate is damaged or you're changing the look.

They're different devices. A pressure balance cartridge like the 023529-0070A reacts to a change in the hot-to-cold pressure ratio and holds the mix steady when a fixture elsewhere draws water. A thermostatic cartridge senses actual outlet temperature and holds a set degree value, and it usually sits in a valve with a separate volume control. If your existing American Standard valve is a pressure balance body, this is the matching repair; a thermostatic body needs a thermostatic cartridge and the two don't interchange.