San Souci One-Piece Round-Front 1.28 GPF Toilet with AquaPiston Flushing Technology

With sleek curves and a low-profile silhouette, the San Souci one-piece toilet makes a strong design statement. A compact tank curves seamlessly into a round-front bowl for a space-saving profile. 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. This toilet comes with a soft-close seat featuring innovative technology that prevents the seat from slamming and simplifies both cleaning and installation.

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Cleaning and Care

  • Features

    Whats in the Box:

    • K-4007 One-Piece Toilet
    • K-4009 Reveal Quiet-Close with Grip-Tight Seat
    • Install Accessory Hardware
    • Installation Instructions


    • One-piece toilets integrate the tank and bowl into a seamless, easy-to-clean design
    • Round-front bowl offers an ideal solution for smaller baths and powder rooms
    • Low-profile design
    • 1.28 gallons per flush (gpf)
    • Includes K-4009 Reveal®�Quiet-Close™�with Grip-Tight seat
    • Standard 12-inch rough-in
    • Supply line not included
    • Standard left hand trip lever

    Flush Technology

    • AquaPiston canister allows water to flow into the bowl from all sides (360 degrees), increasing the power and effectiveness of the flush
    • Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong siphon during flushing
    • Flush valve's 3:2 ratio harnesses the natural force of gravity and optimizes flush performance
    • Light-touch canister flush requires a lower actuation force than a flapper
    • Durable canister design has 90% less exposed seal material than a 3-inch flapper, for leak-free performance


    • ASME: A112.19.2
    • CSA: B45.1
    • WaterSense Certified

    Recommended Accessories

    • K-75758: Cachet Nightlight Quiet Close Seat
    • K-76923: Puretide Quiet Close Seat
    • K-5420: Low Profile Bolt Caps
    • K-9176: Trip Lever

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