American Standard Reliant 3 1.75 gpm/6.6 L/min Tub and Shower Trim Kit With Double Ceramic Pressure Balance Cartridge With Lever Handle - AMS-TU385508

Trim only. The Reliant 3 TU385508 kit gives you the showerhead, shower arm and flange, metal wall escutcheon and metal lever handle, plus the double ceramic pressure balance cartridge. The valve body itself is a separate order: this trim is made for American Standard Flash shower rough-in valves. If you're roughing in new construction, buy the Flash rough-in valve at the same time or the job stops at drywall.

The showerhead is rated 1.75 gpm / 6.6 L/min maximum, so it sits under a 1.8 gpm cap. American Standard states it saves 30% water usage. For property managers doing multi-family retrofits where a low-flow head is required per unit, this comes low-flow out of the box, no aerator swap needed.

Yes. The Reliant 3 cartridge has back-to-back capability, meaning hot and cold can be reversed quickly at the cartridge without repiping the wall. That's the common fix on back-to-back bathrooms in apartments and hotels where one side's supplies land opposite the other.

Pressure balance. The Reliant 3 uses a one-piece double ceramic cartridge that combines a ceramic disc mixing valve with a ceramic balancing spool. The spool holds output temperature steady when hot or cold supply pressure changes, so a toilet flush elsewhere in the building doesn't scald the person in the shower. It is a single-handle temperature-and-volume control, not a thermostatic valve with a separate temperature dial, so you cannot preset a numbered temperature on it.

Yes. The cartridge has an adjustable hot limit safety stop that caps how much hot water can mix with cold, which is how you dial back scald risk on a unit serving kids or elderly residents. It's set at the cartridge during trim-out, so a facility can standardize the same stop position across every shower.

The mixing valve and the balancing spool are both ceramic, and American Standard states ceramic is unaffected by mineral deposits and harsh water conditions. That's the reason to spec a ceramic cartridge on well water or in a hard-water market: no rubber seat to scale up and start dripping. American Standard also calls the ceramic disc valve a lifetime drip-free design.

The Reliant 3 uses a one-piece cartridge, which American Standard states simplifies installation and maintenance. Mixing valve and balancing spool are combined in that single unit, so a maintenance tech pulls and replaces one part instead of diagnosing two. For an MRO stockroom that means one spare on the shelf covers a service call.

Tub and shower. The TU385508 is trimmed for a tub/shower combination, so it pairs with a Flash rough-in valve configured with a tub spout outlet. If the opening is a shower stall with no tub, you want a shower-only trim instead, since the diverter path here expects a spout.

Chrome, part number TU385508.002. That's the single finish this trim kit is built in, and the handle and escutcheon are metal rather than plastic, which matters on high-traffic rentals where plastic handles crack. If your building is standardized on brushed nickel or matte black, this specific kit won't match.

No separate check valves needed. Integrated check valves are built into the Reliant 3 cartridge to eliminate cross flow, so hot doesn't migrate into the cold line through the valve. On a repipe or inspection where cross-connection control gets looked at, that's already handled at the valve.

3-3/4 inches (96 mm) across. It's a compact water-saving head at 1.75 gpm, not a large rain-style face, so if the spec on the drawing calls for a wide showerhead you'd substitute a different head onto the same arm. The kit does include the shower arm and flange, so the head is a straightforward swap if a job requires something else.