American Standard Ultima Selectronic Touchless Toilet Flush Valve, Piston-Type, Battery, Dual Flush 1.6/ 1.1 gpf (6.0/4.2 Lpf) - AMS-6065761

No hardwiring. The Ultima Selectronic 6065761 runs on a CR-P2 lithium battery rated for 8 years of service, installed in the valve. That makes it a straightforward swap in a restroom with no conduit or transformer at the fixture, which is why property managers use battery sensor valves on retrofit jobs.

It fails closed. The valve automatically shuts on loss of power or water pressure, so you don't get a stuck-open valve flooding the stall. There's also a fully mechanical manual override that works with no power at all, so occupants can still flush the fixture until you get a battery in it.

Yes, provided the bowl is a flushometer bowl with a 1-1/2 inch exposed top spud and your supply stub matches the 11-1/2 inch rough-in. Going from a manual lever to the Ultima Selectronic gets you touchless operation, which is what high-traffic restrooms in healthcare, schools, and airports are converting to for hygiene. No electrical work is needed since the valve is battery powered.

Two volumes: 1.6 gpf (6.0 Lpf) for the full flush and 1.1 gpf (4.2 Lpf) for the reduced flush. Pair it with a bowl rated for 1.6 gpf so the full flush clears the trapway properly. A bowl spec'd at 1.28 gpf is not a match for this valve.

Piston-type. Piston valves have fewer soft rubber parts in the water path and tend to hold up better on harder or dirtier water than a diaphragm valve, which is why MRO crews in older buildings often standardize on them. The tradeoff is that piston and diaphragm rebuild kits are not interchangeable, so if you mix types across a facility you carry two sets of repair parts.

The 6065761 uses American Standard's DynaClean self-cleaning wiper spring. An integral wiper spring scrubs the refill orifice on every flush, which is the orifice that clogs with grit and causes valve run-on. That's the single most common callback on commercial flushometers, and it's the reason this design exists.

The body uses a proprietary brass alloy that resists dezincification, the failure mode where zinc leaches out of brass and leaves a porous, crumbling casting. It shows up in high-chloride or low-pH water and it's what kills standard brass valves early in coastal and some well-fed systems.