The San Souci one-piece toilet offers a sleek, contemporary design with a convenient chair-like height and elongated bowl for comfortable use. This toilet features innovative AquaPiston technology, a patented flush engine that delivers a fast, powerful, and virtually plug-free flush. A 1.28-gallon flush provides significant water savings of up to 16,500 gallons per year, compared to a 3.5-gallon toilet, without sacrificing performance.






  • One-piece toilets integrate the tank and bowl into a seamless, easy-to-clean design.

  • Compact elongated bowl offers added comfort while occupying the same space as a round-front bowl.

  • Low-profile design.

  • Comfort Height® feature offers chair-height seating that makes sitting down and standing up easier for most adults.

  • 1.28 gallons per flush (gpf).

  • Concealed trapway and Clean Caps® facilitate easier cleaning and enhanced design.

  • Includes K-4008 Reveal  Quiet-Close  with Grip-Tight seat.

  • Standard left-hand trip lever included.


Kohler San Souci K-5172

Toilet Type
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