American Standard Madera 15-Inch Toilet System With Manual Piston Flush Valve, 1.1 gpf/4.2 Lpf - AMS-2858111

The flush valve ships with it. The Madera 2858111 is sold as a complete toilet system: elongated floor mount flushometer bowl plus a manual piston-operated flush valve rated 1.1 gpf/4.2 Lpf. What is not included is the seat, so budget a commercial elongated seat per opening. The handle is non-hold-open, so it shuts off automatically instead of letting a user hold a long flush.

Top spud. The Madera 2858111 bowl takes the flush valve on top of the bowl, so it needs an exposed flushometer connection coming down from the wall. A back spud bowl, used where the valve is concealed behind the wall or the piping comes in horizontally, will not work with this bowl and vice versa. Confirm the rough-in on the drawing matches a top spud arrangement before ordering.

The Madera 2858111 carries a maximum 1,000 gram MaP score, which is the top of the MaP scale and the level specifiers look for in schools, stadiums and other heavy use restrooms. That performance at 1.1 gpf/4.2 Lpf is what lets facilities cut water use without going back to double flushing.

The piston valve on this Madera system uses American Standard's DynaClean design, where an integral wiper spring cleans the refill orifice on every flush. A clogged refill orifice is the usual cause of valve run-on, so clearing it automatically is what keeps the valve from hanging open. That matters most in buildings with hard or dirty water where maintenance staff are pulling pistons regularly.

Elongated. The Madera 2858111 is an elongated floor mount bowl shipped less seat, so pair it with a commercial elongated open front seat, typically with no cover and self-sustaining check hinges for public restrooms. A round front seat will not cover the bowl.

It is offered in white only, MPN 2858111.02, which is American Standard's standard white china finish used across the Madera commercial line. For a property manager standardizing a restroom fleet, that means the bowl will match other white Madera fixtures already installed.

The bowl is built with a condensation channel, which handles the water that forms on cool china in humid or high traffic restrooms instead of letting it drip to the floor. The china uses a conventional glaze rather than a premium antimicrobial-style surface.