Is a 21-inch seat height really ADA compliant?

ADA guidance calls for toilet seats between 17 and 19 inches above the floor. A 21-inch seat height is above that range, so treat it as extra-tall comfort height rather than a strict ADA-compliant toilet.

Will this fit a standard 12-inch rough-in?

Two-piece toilets of this type usually fit a standard 12-inch rough-in, but check the manufacturer's rough-in spec before ordering. Measure from the finished wall to the closet bolts to confirm.

Round or elongated bowl: which should I pick?

Round bowls save about two inches of depth, which matters in small bathrooms. Elongated bowls give most adults more seating room and are the more common choice when space allows.

Does it come with a seat and wax ring?

Toilet sets often include the bowl, tank and hardware but not always the seat, supply line or wax ring. Confirm the box contents before buying so you can pick up any missing parts.

How does it compare with a one-piece toilet?

One-piece toilets have fewer seams, are easier to clean and usually look sleeker. Two-piece models like this one are lighter, simpler to install and cheaper to replace parts on.