American Standard Colony Two-Piece 1.28 gpf/4.8 Lpf Chair Height Elongated Toilet Less Seat - AMS-221AA104

The Colony two-piece elongated toilet is a 12-inch rough-in bowl, so the closet flange centerline sits 12 inches off the finished wall. If you're replacing an older fixture, measure from the finished wall (not the baseboard) to the center of the closet bolts before you order. A 10-inch or 14-inch rough-in opening will not take this bowl without moving the flange.

No seat is included. The Colony 221AA104 ships as a less-seat fixture, so you need to order an elongated seat separately to finish the job. What does come in the box is the trip lever and the bowl caps, both color-matched to the china, so those don't need to be sourced. Spec an elongated seat, not a round one, since the bowl is elongated.

American Standard states the Colony chair height elongated bowl meets Americans with Disabilities Act requirements for use and accessibility, and the rim measures 17 inches tall including the seat. Note that final seat height varies slightly with whichever seat you pair to it, since the fixture ships less seat. One thing to weigh for a commercial job: this Colony is catalogued as a residential fixture, so for high-traffic public restrooms a commercial-grade flushometer bowl is usually the better call.

Chair height puts the seat at roughly the same level as a dining chair, and the Colony measures 17 inches tall including the seat, versus the roughly 15 inches of a standard-height bowl. That extra couple of inches is far easier on anyone with knee or hip trouble, which is why chair height is the usual pick for senior housing and accessible units. Standard height still suits kids' bathrooms. The Colony chair height bowl also meets ADA requirements.

1.28 gallons per flush (4.8 liters), and it's WaterSense certified, which means it uses 20 percent less water than the 1.6 gpf baseline while flushing as well or better. That matters on two fronts for property owners: many local codes and new-construction specs now require a 1.28 gpf maximum, and WaterSense certification is what most municipal water utility rebate programs ask for on a fixture swap.

Beyond the fixture, plan on an elongated seat (not included), a wax ring or waxless seal, closet bolts, and a supply line to reach the fill valve. The trip lever and the color-matched bowl caps come with it. If the existing flange is set below the finished floor after new tile, add a flange extender to the list, otherwise the seal will weep.

Two-piece construction means the tank and bowl ship and set separately, so you're carrying two manageable pieces up a stairwell instead of one heavy china unit, and the tank can be pulled or replaced on its own later. That's the practical reason two-piece bowls dominate rental and multi-family work. A one-piece has no tank-to-bowl gasket seam to clean around and gives a lower profile, but a crack anywhere means the whole fixture goes. The Colony is vitreous china either way.

The Colony uses a PowerWash rim, which directs the flush water around the full inner rim to scrub the bowl each time it's flushed. That keeps the rim channel from silting up the way older rimmed bowls do in hard water, which is the usual source of weak, streaky flushes in rentals. It doesn't replace periodic cleaning, and in-tank bleach tablets are still worth avoiding since they chew up the flush valve seal.