Toto CST424EF Bone Eco Promenade 1.28 GPF Two Piece Elongated Toilet - Less Seat

- Item #: BCI1154861

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Questions about Toto CST424EF#03?

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  • How to remove and install a Toilet
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  • TOTO Toilet Flush Testing
    Take a moment to see just how TOTO takes flush testing seriously.

This product has additional required/recommended options. To configure, add to your cart.

  • Toilet Seat Required

Product Features:

  • Two-piece configuration eases installation and maintenance
  • Elongated bowls provide an extra 1-1/2" compared to the traditional round bowl
  • Covered under Toto's one year limited warranty
  • Made from durable and easy-to-clean vitreous china
  • Floor mounted installation type provides for fast and easy installation
  • Gravity flush type is both easy to use and effectively clears waste
  • ADA compliant
  • WaterSense certified – toilet uses 20% less water than the current standard while maintaining superior performance

Product Technologies / Benefits:

  • E-Max Flush Technology: Based on Toto's legendary G-Max gravity flushing system, E-Max is designed to save water without sacrificing efficiency. This 1.28 GPF gravity flushing technology utilizes simple and efficient engineering to reduce the amount of water needed to clear waste.

Product Specifications:

  • Overall Height: 34-1/2" (measured from the bottom of the base to the highest point on the toilet)
  • Overall Length: 28-1/4" (measured from the back of the tank to the front of the rim)
  • Overall Width: 19-1/8" (measured from the furthest point on the left to the furthest on the right)
  • Bowl Height: 16-1/8" (measured from the bottom of the base to the rim)
  • Flow Rate: 1.28 GPF (gallons-per-flush)
  • Water Area: 8-7/8" x 6-3/8" (inner rim dimensions length X width)
  • Water Depth (From Rim): 5-1/2"
  • Tank Width: 19-1/8" (measured from left most to right most points on tank)
  • Trapway (Discharge Passageway) Size: 2-1/8"
  • Distance Between Toilet Seat Installation Holes: 5-1/2"

About Toto:

For over 90 years Toto has been producing superbly designed, high-performance plumbing products for residential and commercial bathrooms. With a concentration on creating a more enjoyable bathroom experience, Toto infuses its products with sophisticated styling and substance. Each product is constructed and fine-tuned with computer precision and relentless attention to detail. Through ever evolving manufacturing practices and new technologies, Toto consistently leads the way in plumbing fixture efficiency and sustainability. It is this pursuit of excellence that pushes them beyond industry standards and drives them to maintain their reputation as one of the most decorated plumbing manufacturers in the world.

Additional Toto Links

Our SKU: Toto CST424EF

This product is listed under the following manufacturer number(s):

  • Toto CST424EF#03
  • Toto CST424EF#01
  • Toto CST424EF#12
    Sedona Beige

*Denotes a finish or option that has been discontinued

Toto CST424EF#03 Product Specifications

Specification Sheet
Installation Guide
Exploded Parts
Bowl Height 16.125
Bowl Shape Elongated
Configuration Two Piece
Extension 28.25
Flush Technology E-Max
Flush Type Gravity Flush
Gallons Per Flush 1.28
Height 34.5
Installation Type Floor Mounted
Material Vitreous China
Rough In 12
Seat Included No
Theme Traditional
Trapway 2.125
Trip Lever Placement Left
Water Area 8.875 x 6.375
WaterSense Certified Yes
Width 19.125

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Toto CST424EF Reviews

  • What is the total height of this toilet?

    A. The Toto CST424EF toilet is a total of 33" tall.
  • High how is the bowl/seat?

    A. The top of the bowl is 16 1/8" from the floor.
  • If the bowl height is 16 1/8" off the ground, how can the seat be 16 1/8" off the ground?

    A. Good question. The toilet or toilet seat is measured by the height of the rim only. The actual toilet seat will add additional height.
  • What is the size of the rough in?


    The Toto CST424EF has a 12" rough in.

Buy the Toto CST424EF#03 in Bone at Research Toto CST424EF#03 in Bone online. Find Toto CST424EF#03 in Bone features and specifications. Get the best deal by comparing the Toto CST424EF#03 in Bone today.

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