American Standard Afwall Millennium Wall-Hung Toilet System With Manual Piston Flush Valve, 1.28 gpf/4.8 Lpf - AMS-2859128

The Afwall Millennium 2859128 is sold as a system: the elongated wall-hung flushometer bowl plus a manual piston-operated flush valve, rated 1.28 gpf/4.8 Lpf. The bowl ships less seat, so an elongated open-front commercial seat is a separate line item. You still need a carrier and the waste fitting for the chase, which are not part of the system.

Top spud. The Afwall Millennium 2859128 bowl takes the supply at the top, which is what a wall-mounted exposed flushometer dropping down from above connects to. If the opening is roughed in for a back spud bowl with the valve concealed behind the wall, this is the wrong configuration and you need a back spud Afwall instead.

Yes. The Afwall Millennium 2859128 flushes at 1.28 gpf (4.8 Lpf), the standard high-efficiency water closet rate, and carries a maximum 1,000 gram MaP score, which is the top result on the MaP waste-removal test. That combination is what specifiers look for when they want the reduced flush volume without drain-line carry complaints.

Manual. The flush valve on the 2859128 system is piston-operated with a handle, so there is no power, no battery and no solenoid to maintain. The handle is non-hold-open, meaning it shuts off automatically and cannot be held down to over-flush, which matters in schools and public restrooms.

That is what the DynaClean feature on this piston valve addresses. An integral wiper spring scrubs the refill orifice on every flush, keeping the debris and mineral buildup that causes run-on from collecting there. It is the most common cause of a flushometer trickling continuously, and this valve is built to self-clean rather than requiring a periodic rebuild for it.

A wall-hung bowl like the Afwall Millennium 2859128 hangs off a carrier in the wall chase and leaves the floor clear, which makes mopping and floor maintenance much easier and is why it dominates schools, airports and other high-traffic public restrooms. It requires a chase deep enough for the carrier and the drainage fitting. If you are working over a slab with no chase and no ability to build one, a floor-mount flushometer bowl is the practical choice; you give up the open floor but avoid the carrier entirely.

The Afwall Millennium bowl has a condensation channel built into the china to catch and route condensate rather than letting it drip onto the floor, which is the usual complaint in humid restrooms on cold supply lines. The glaze is a conventional vitreous glaze, not a premium easy-clean coating.

White only, ordered as part number 2859128.02. If the other fixtures in the room are a colored china, this will not match and you would need a different Afwall configuration.