DeerValley Elongated Two-Piece Toilet, ADA Height 17.5 Inch Comfort Chair Height, Dual Flush 1.1/1.6 GPF Review (2026)

Seat height for tall users

This toilet is built to a 17.5 inch ADA comfort height, taller than the roughly 15 inch seat height on a standard toilet, which reduces how far a tall adult has to bend to sit down or stand up. That extra height also helps anyone with knee or hip mobility limitations regardless of stature, which is why ADA height toilets are common recommendations for both tall households and accessibility needs. Among comfort height toilets on the market, 17.5 inches sits toward the taller end, matched or slightly exceeded by only a handful of competing elongated models, most of which land closer to 16.5 or 17 inches.

Dual flush and water use

The dual flush system offers a 1.1 gallon light flush for liquid waste and a 1.6 gallon full flush for solid waste, letting a household choose the lighter option most of the time and saving water compared with a single flush toilet that always uses the higher volume. The listing also cites a MaP score of 1000 grams, a widely used industry test that measures how much solid waste a toilet can clear in a single flush; a 1000 gram result is generally considered a strong, dependable score rather than a borderline one, and it suggests the bowl should handle everyday use without repeat flushing.

Bowl shape and installation

The bowl is elongated rather than round, which is generally more comfortable for larger or taller adults and is the more common shape sold in the United States for exactly that reason. It is designed for a standard 12 inch rough-in, which is the most common measurement between the wall and the bolts on the floor flange, so it should fit the same space as most other standard toilets without needing custom plumbing work. A soft close seat is included, reducing slamming noise, and the toilet is finished in white to match standard bathroom fixtures and most existing decor without clashing with tile or paint choices.

Two-piece design trade-offs

Because the tank and bowl are separate pieces bolted together rather than one continuous ceramic unit, there is a visible seam where the tank meets the bowl that a one-piece toilet does not have, and that seam and the space underneath the tank collect dust and require more attention when cleaning than a one-piece design. Two-piece toilets are generally less expensive than equivalent one-piece models and are usually easier to move and install because the tank and bowl can be carried separately, which is a fair trade for most buyers weighing price and effort against slightly easier cleaning around the base.

Brand support and parts

DeerValley is a smaller toilet brand compared with names like Kohler or TOTO, both of which have extensive retail and plumbing supply distribution across the country. That means finding a replacement fill valve, flapper, or seat for this specific model may take more searching or ordering directly from the brand rather than picking one up at a local hardware store the same day. For most households this is a minor inconvenience rather than a dealbreaker, but anyone who strongly prefers being able to buy replacement parts locally should factor that into the decision before choosing a smaller toilet brand over a mainstream one.

Frequently asked questions