American Standard Cadet PRO 1.6 gpf/6.0 Lpf 10-Inch Rough Tank - AMS-4188B004

No. This Cadet PRO tank is built for a 10-inch (254 mm) rough-in, meaning the waste centerline sits 10 inches off the finished wall. Put it on a standard 12-inch rough and the tank sits two inches off the wall with a gap behind it. Measure from the finished wall to the closet bolt centers before ordering: 10 inches means this tank, 12 inches means the 12-inch rough Cadet PRO tank instead.

Two finishes: White (4188B004.020) and Linen (4188B004.222). American Standard china color codes carry across the line, so a .020 tank matches a .020 bowl and a .222 matches a .222. Check the color code stamped inside your existing bowl or on the underside of the old tank lid and order the same suffix, since white and linen read very differently side by side in the same room.

1.6 gallons per flush (6.0 litres), the standard full-flush volume. It runs a 3-inch (76 mm) flush valve, which is the larger of the two common valve sizes and dumps the tank faster than a 2-inch valve, so you get a harder flush out of the same 1.6 gallons. That matters in multi-family and light commercial washrooms where callbacks are usually about weak flushes, not water use.

American Standard classes the Cadet PRO as a residential product, which in practice covers single-family, multi-family units and hospitality guest baths. The build is what makes it hold up in a rental: vitreous china body, a metal trip lever instead of plastic, and a shank fill valve. The EverClean antimicrobial surface inhibits odor- and stain-causing bacteria, mold and mildew, which helps in units that go long stretches between deep cleans. For a true institutional restroom with constant use, a commercial flushometer bowl is the better spec.

The trim comes with it. The tank ships with the metal trip lever and the shank fill valve, plus the 3-inch flush valve. What is not in the box is the tank-to-bowl gasket and bolt set and the supply line, so have those on the truck. If you are only chasing a running toilet on an existing Cadet PRO, you want a flapper or fill valve repair kit rather than a whole new china tank.

Cadet PRO is American Standard's contractor-grade version of the Cadet family, built for repeat installs: metal trip lever, shank-type fill valve, and the 3-inch flush valve for a stronger flush. It carries the EverClean antimicrobial glaze. The practical difference on the job is the trim quality and the flush valve size. Either way, tanks are not interchangeable across families, so a Cadet PRO tank goes on a Cadet PRO bowl only.