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TOTO Ultramax WASHLET+ S2 One-Piece Toilet - 1.28 GPF - on a white background

TOTO Ultramax WASHLET+ One-Piece Toilet - 1.28 GPF

by TOTO
SKU MW6083346CEFG#01
UPC/GTIN: 739268482784
$853.00
Integrated Bidet Seat
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Integrated Bidet Seat Customization Options

To help you choose the right fit for your home, this system can be customized with four distinct TOTO bidet seat options:

  • WASHLET S2: Features a convenient attached arm control panel on the side of the seat for straightforward adjustments.
  • WASHLET S5: Upgrades your experience with a sleek, handheld multifunction wireless remote control.
  • WASHLET S7: Includes a premium multifunction wireless remote control paired with additional customizable water and seat temperature settings.
  • WASHLET S7A: Offers a premium luxury experience with a multifunction remote control, additional temperature settings, and a hands-free auto-opening/closing lid. (Optional Auto Flush upgrade available for S7 and S7A models).
TOTO Ultramax WASHLET+ S2 One-Piece Toilet - 1.28 GPF - on a white background
TOTO Ultramax WASHLET+ One-Piece Toilet - 1.28 GPF - top view

Easy-Clean Glaze

The CEFIONTECT glaze creates an extraordinarily smooth ceramic surface that helps keep the bowl clean. By preventing debris and mold from adhering to the porcelain, it ensures that routine bathroom maintenance requires less time and effort. A common feature in Toto One Piece Toilets.

TOTO Ultramax WASHLET+ One-Piece Toilet - 1.28 GPF - Open lid

Powerful Tornado Flush

The TORNADO FLUSH system utilizes two powerful nozzles to create a centrifugal, cyclonic rinsing action with a 1.28 GPF volume. It delivers a strong and efficient clean with every flush, sweeping away waste efficiently. Found in many Toto Ultramax models.

TOTO Ultramax WASHLET+ One-Piece Toilet - 1.28 GPF - side view

Smooth Trapway Design

The high-profile tank design offers a timeless architectural presence while maximizing water volume height. This configuration assists the flushing mechanism to deliver consistent performance with minimal external upkeep required.

TOTO Ultramax WASHLET+ One-Piece Toilet - 1.28 GPF - front

Comfort and Convenience

Universal height, a spacious elongated bowl, and the premium integrated electronic bidet features make it exceptionally comfortable and easy to use every day while meeting modern accessibility standards.

TOTO Ultramax WASHLET+ One-Piece Toilet - 1.28 GPF

Ultramax is a trusted classic, updated to meet today’s expectations for comfort, clean lines, and architectural design. Its distinctive decorative one-piece form features a high-profile tank that provides a substantial, furniture-like presence to suit a wide range of bathroom interiors. Equipped with an efficient 1.28 GPF TORNADO FLUSH® system and a smooth CEFIONTECT® ceramic glaze, it delivers powerful rinsing performance with consistent results while maintaining a premium everyday bathroom experience. As an integrated WASHLET+ system, it seamlessly combines advanced ceramic tech with premium electronic bidet options to transform everyday routines into a refined, comfort-focused experience.

Perfect for those looking for a timeless, high-profile smart bidet toilet system featuring eco-friendly 1.28 GPF water conservation, a solid unified construction, and minimal upkeep.

TOTO Ultramax WASHLET+ Specifications and Features

  • CEFIONTECT® ceramic glaze prevents debris and mold from sticking to ceramic surfaces
  • High-efficiency TORNADO FLUSH® system delivers powerful and reliable rinsing performance at 1.28 GPF
  • Decorative one-piece design with a traditional high-profile tank for an elegant, integrated appearance
  • Concealed supply connection ensures bidet water hoses and power cords are completely hidden from view
  • EWATER+® and PREMIST® systems automatically mist the bowl and clean the bidet wand after every use
  • Self-cleaning wand cleans itself inside and out before and after every single use for easy maintenance
  • CLEAN RESIN® construction on the wand and seat repels dirt, waste, and grime for effortless upkeep
  • Integrated night light softly illuminates the inside of the toilet bowl
  • Chrome plated trip lever included on the tank (Premium finishes available via customization)
  • Comfortable universal height and ADA compliant design
  • Standard 12" rough-in installation

TOTO Ultramax Compatibility

The TOTO Ultramax WASHLET+ is an elongated front one-piece toilet system. Confirm these four things before ordering.

  • Rough-in measurement: Standard 12-inch rough-in configuration. Make sure to measure from the wall (not the baseboard) to the center of your floor drain bolts.
  • Floor space: Elongated bowl requires about 18½ inches from the wall to the front of the bowl for maximum seating comfort. Confirm at least 15 inches of side clearance from the bowl centerline.
  • Water supply location: Your incoming water line connects behind the toilet base. Ensure your water shutoff valve has adequate clearance from the toilet body to accommodate the concealed WASHLET+ water connection channel. Standard ½-inch shutoff valves work with this toilet.
  • Drain configuration: This toilet has a floor drain only. Wall drains are not compatible; the drain must exit the floor at your standard 12-inch rough-in point.

For reference: One-piece toilets are heavier than two-piece models (approximately 75–90 lbs) because the tank and bowl are fused together; plan for two people during installation.

Installation steps

  1. Turn off the water supply and flush the existing toilet to empty the tank and bowl.
  2. Disconnect the water supply line and remove the old toilet by unbolting it from the floor.
  3. Clean the floor around the drain opening and remove the old wax ring or seal.
  4. Install a new wax ring (or rubber seal) on the floor drain opening, centered on the drain.
  5. Lower the new toilet onto the wax ring, aligning the bolts with the floor holes, and tighten bolts hand-tight then with a wrench.
  6. Route the WASHLET+ water supply and electrical lines through the integrated porcelain channels to achieve a concealed installation.
  7. Reconnect the water supply line, plug in the unit, and fill the tank to test for leaks around the base and connection points.
  8. Install the chosen integrated WASHLET bidet seat onto the bowl mounting holes and calibrate settings via the remote or arm panel.

TOTO Ultramax WASHLET+ Downloads

TOTO Ultramax WASHLET+ Installation Manual

TOTO Ultramax WASHLET+ S5 Spec Sheet

TOTO Ultramax WASHLET+ S2 Spec Sheet

TOTO Ultramax WASHLET+ S7 Spec Sheet

TOTO Ultramax WASHLET+ S7A Spec Sheet

Frequently Asked Questions

  • Yes, the TOTO Ultramax is a highly regarded toilet known for its exceptional reliability and durable one-piece construction. Homeowners and professionals trust it because its large trapway and strong flush engine work together effectively to prevent clogs and ensure a dependable everyday bathroom routine.

  • The main difference is their flushing volume and tank styling, as the original Ultramax features a classic high-profile tank that utilizes a robust 1.6 GPF water volume for maximum rinsing power. In contrast, the Ultramax II is designed primarily for high-efficiency water conservation, utilizing a lower 1.28 GPF flow rate alongside a slightly modified silhouette.

  • In TOTO's lineup, the name Ultramax represents a combination of maximum flushing performance, robust clearing power, and heavy-duty durability. It signifies a product line engineered to handle high-volume daily use effortlessly while giving homeowners total peace of mind against clogs.

  • The Ultramax provides excellent benefits, including a leak-resistant one-piece body that eliminates the traditional tank-to-bowl gasket and a powerful dual-nozzle TORNADO FLUSH® system. Additionally, its smooth CEFIONTECT® ceramic glaze keeps waste from sticking to simplify cleaning, while the integrated WASHLET+ channels hide all bidet cords and hoses completely out of sight.

  • The TOTO Ultramax is ideal for busy family bathrooms and high-traffic households that require a strong, clog-resistant flush paired with traditional styling. It is especially good for homeowners who want to upgrade to a premium water-wash system while keeping a classic, high-profile tank appearance and a robust 1.6 GPF water volume.