American Standard 2-Way In-Wall Diverter Rough-In Valve With 2 Discrete/1 Shared Function - AMS-R422S

No. The R422S ships as a bare rough-in valve, less handle, and the trim must be ordered separately. Budget two line items for every shower: the valve body and the matching trim kit. The body goes in at rough-in, the trim goes on after tile and finish work.

The R422S accepts the Town Square, Serin, Green Tea, Moments, Times Square, Quentin, Berwick (lever or cross handle), and Portsmouth (lever or cross handle) shower trim kits. That spread is why the valve works for a property manager standardizing rough-in across a building: one valve body behind the wall, and the trim style can change room to room or be updated years later without opening the wall.

It describes the three positions the diverter gives you across two outlets. Two discrete positions send all the water to one outlet only, say the showerhead alone or the body sprays alone. The shared position splits flow between both outlets at once. The R422S controls water between 2 outlets, shower or sprays, and allows shared flow, so a two-head shower can run either head by itself or both together.

Yes. The R422S is a diverter only, it routes already-mixed water between two outlets. It does not mix hot and cold and it does not control temperature. A complete shower needs a separate mixing valve upstream, with the diverter downstream of it feeding the showerhead and the sprays.

For high-use openings, yes. The R422S uses a cast brass valve body, which American Standard calls out for high-use applications and prolonged contact with water. On multi-family and hospitality work the valve body is the part you never want to revisit, since replacing it means opening tile. Brass in the wall, and the trim as the wear item you can swap from the outside.

Yes, through the trim. American Standard offers a wide selection of ADA approved trim for this valve, so the accessibility compliance is decided at the trim kit, not the rough-in body. The R422S itself is sold less handle. For an ADA project, spec the valve body normally and confirm the ADA designation on the trim kit you pair with it.

No. The R422S is a 2-way diverter with two outlets. For a third outlet, such as a rain head plus a hand shower plus body sprays, you need a 3-way diverter or a second valve. Trying to tee off one of the two outlets splits flow permanently instead of giving you a selectable position.

The manufacturer part number is R422S, an American Standard 2-way in-wall diverter rough-in valve with 1/2 inch NPT inlets and outlets, supplied less handle. Order it by R422S when you need the rough-in body only, and pair it with the trim kit separately.

Because nothing on it is visible once the wall is closed. The R422S is a rough-in body only, sold less handle, so it carries no decorative finish. The finish you see in the shower comes entirely from the trim kit, which is ordered separately, and that is where you pick chrome, nickel, bronze, or whatever the job calls for.