American Standard Yorkville Two-Piece Pressure Assist 1.6 gpf/6.0 Lpf Chair Height Back Outlet Elongated EverClean Toilet - AMS-2878016

Back outlet. The Yorkville 2878016 is a floor-mounted bowl with a rear discharge, so it ties into a waste line coming out of the wall rather than a closet flange in the slab. That makes it the fix for back-to-back commercial restrooms, upper floors over finished ceilings, and any remodel where you cannot break the floor. If your rough-in is a floor flange, this is the wrong bowl.

The bowl sits at 16-1/2 inches (419 mm) chair height, which American Standard calls out for accessible applications. Add a seat and the finished seat height lands in the range accessible work usually targets. It is the reason property managers and healthcare buyers pick this bowl over a standard-height rear-outlet model for patient rooms, assisted living, and public restrooms.

No seat. You get the bowl and the tank, less seat, so budget an elongated seat separately. The chrome-plated metal trip lever and four color-matched bolt caps are in the box, so those are not extra line items on the order.

Pressure assist uses water line pressure trapped in a vessel inside the tank to force the flush, instead of relying on the weight of water falling from the tank. The Yorkville uses pressure-assisted siphon jet action, which moves waste through the trapway faster and with less chance of a partial flush in high traffic. The tradeoff is noise, so gravity flush is usually preferred in hotel guest rooms and bedrooms while pressure assist goes in public, school, and institutional restrooms.

Elongated. That matters for two reasons: the seat you order must be elongated, and the bowl projects farther into the room than a round front, so check clearance in tight stalls and small powder rooms before you commit.

2-1/8 inches (54 mm), and it is fully glazed end to end. The glaze is what keeps waste from catching on the ceramic inside the passage, which is why maintenance crews in high-use buildings ask about it. A fully glazed trapway at that size is a plunger-in-the-closet decision, not a spec sheet footnote.

EverClean is an antimicrobial surface baked into the china that inhibits growth of stain and odor causing bacteria, mold, and mildew on the surface. It slows down staining and odor between cleanings; it does not sanitize the fixture and it does not replace a cleaning routine. In a facility with a set custodial schedule it mostly buys you a bowl that still looks clean at the end of the day.

The tank has a built-in condensation channel to catch and manage sweat that forms on the tank in humid conditions, which keeps drips off the floor around the base. That is a practical feature in unconditioned or high-humidity spaces like locker rooms and older buildings on cold supply water.

White only, ordered as 2878016.02. The four bolt caps supplied with it are color matched to the white china, so there is no separate trim choice to make on the order.

10 by 12 inches. A large water spot covers more of the bowl surface, so less of the china is exposed to soil between flushes, which is part of why this bowl gets specified in high-traffic public restrooms.