American Standard Yorkville Two-Piece Pressure Assist 1.1 gpf/4.2 Lpf Chair Height Back Outlet Elongated EverClean Toilet - AMS-2878100

It's a back-outlet bowl, so waste exits horizontally into the wall rather than down through a floor flange. The fixture itself is floor-mounted, so you get floor support with rear discharge, which is what you need in a slab-on-grade building or a retrofit where you can't break concrete for a floor drain. If your rough-in is a floor flange, this is the wrong bowl.

The bowl is built at 16-1/2 inch (419 mm) chair height, which American Standard calls out for accessible applications. Seat height in use ends up slightly higher once a seat is added, so pair it with a seat that keeps you inside the range your local code requires for the facility.

No seat. You get the bowl and tank only, so order an elongated seat separately. Four color-matched bolt caps and a chrome-plated metal trip lever are included with the fixture.

Pressure assist is the choice where traffic is heavy and callbacks for double-flushing or clogs cost you money. The Yorkville uses a pressure-assisted siphon jet, which forces water through the trapway under pressure instead of relying on head height in the tank. Trade-off: it's louder than a gravity flush and it needs adequate supply line pressure to charge the vessel, so it's generally specified for offices, schools, and public washrooms rather than bedrooms in multi-family.

2-1/8 inch (54 mm), and it's fully glazed end to end. The glazing is what keeps waste moving through rather than catching on raw china, which matters more on a pressure assist bowl in a high-use restroom.

Elongated bowl, with a 10 inch by 12 inch water surface area. That larger surface is what keeps the sides of the bowl clean on a pressure assist flush. If your stall layout was built around a round-front fixture, check your clearance to the door before swapping to this one.

EverClean is an antimicrobial finish fired into the china surface. It inhibits growth of the bacteria, mold, and mildew that cause stains and odor on the fixture surface. It doesn't replace cleaning, but for property managers running a fleet of restrooms it slows how fast a bowl starts looking dirty between services.

The tank has a built-in condensation channel to handle sweating, which is a common complaint in humid or poorly conditioned washrooms where cold supply water chills the china. It's a design feature of the tank, not a separate insulation kit you order.

White only, ordered as part number 2878100.02. The bolt caps supplied with it are color matched to the china, so the finished install reads as one piece. If you're standardizing a building on white commercial fixtures, this keeps the match consistent across openings.