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The TOTO Eco Clayton and Clayton Universal Height Elongated Toilet Bowl is designed for use with the Eco Clayton ST784E 1.28gpf or Clayton ST784S 1.6gpf tank. The bowl features an extra-large siphon jet, and a large trapway. The bowl is designed to feature TOTO’s Universal Height which allows for a more comfortable seat position across a wide range of users. The bowl is ADA compliant and when paired with the Eco Clayton ST784E 1.28gpf tank, it meets the standards for EPA WaterSense®, and California’s CEC and CALGreen requirements. Additional items needed for installation and use must be purchased separately: tank, wax ring, toilet mounting bolts, water supply lines, and toilet seat.
Features
- Elongated front toilet bowl for use with Eco Clayton ST784E and Clayton ST784S tank.
- Universal Height for more comfort across a broader range of individuals.
- ADA compliant.
- 12" rough-in.
- Glazed trapway.
- Purchased separately: tank, wax ring, toilet mounting bolts, water supply lines, and toilet seat.
| Model No | Length | Width | Height | Weight |
| CST784EF#01 | 28.875 | 21.25 | 31.625 | 98.5 |
| CST784EF#12 | 28.875 | 21.25 | 31.625 | 98.5 |
| C784EF#01 | 28.5 | 14 | 16.125 | 62 |
| C784EF#12
|
28.5 | 14 | 16.125 | 62 |
Manufacturer Resources
CST784EF-Spec-Sheet
Product Specs
- ADA Compliant:
- Yes
- Battery Included:
- No
- Rim Height:
- 16.125
- Rough-In:
- 12
- Trapway Diameter:
- 2.125
- Collection:
- Clayton
- Battery Type:
- Does Not Contain a Battery
- Product Type:
- Bowls
- Product Group:
- Washroom/Bath
- Product Subgroup:
- Toilet
- Product Length:
- 28.5
- Gallons Per Flush (GPF):
- 1.28|1.6
- Installation Category:
- Floor Mount/Floor Outlet
- Product Shape:
- Elongated
- Product Height:
- 16.125
- Product Category:
- Bowls
- Product Weight:
- 62
- Product Width:
- 14
- Department:
- Plumbing
TOTO C784EF#01 – Frequently Asked Questions
1) Is the Clayton bowl sold with the tank, or do I need to order the tank separately?
Both ways. Ordered as Bowl Only you get just the C784EF bowl, and you supply the tank: the Eco Clayton ST784E at 1.28 gpf or the Clayton ST784S at 1.6 gpf. Ordered as the Two Piece Toilet you get the CST784EF, bowl and tank together. Either way the wax ring, mounting bolts, supply line and seat are separate purchases.
2) Does the TOTO Clayton toilet meet ADA requirements for a commercial restroom?
The Clayton bowl is ADA compliant, and the reason is the seat position: it is a Universal Height bowl with a 16-1/8 inch rim height, which lands in the comfort-height band ADA calls for once a seat is added. Elongated shape, so it also suits the deeper clearance a public stall usually specs.
3) Which flush volume do I get with the Clayton, 1.28 or 1.6 gpf?
The tank decides it. The same C784EF bowl runs 1.28 gpf on the Eco Clayton ST784E tank or 1.6 gpf on the Clayton ST784S tank. If you are chasing WaterSense, California CEC or CALGreen, you need the 1.28 gpf Eco pairing; the 1.6 gpf combination does not carry those. For a straight like-for-like replacement in an older building, the 1.6 is the closer match to what came out.
4) Is the Clayton trapway big enough to handle heavy use without clogging?
2-1/8 inch trapway, fully glazed, fed by an extra-large siphon jet. The glaze on the trapway is what matters for a high-traffic restroom or a multi-family building: waste slides rather than catching on bare ceramic, so callbacks drop.
5) Can I replace just the bowl on an existing Clayton toilet and keep the tank?
Yes, if the tank is an Eco Clayton ST784E or a Clayton ST784S. The C784EF bowl is built for those two tanks specifically, so a cracked bowl on an existing Clayton install is a bowl-only replacement, no need to buy the pair. Match the color code too, #01 or #12.
6) What colors does the Clayton toilet come in?
Two: Cotton White (#01) and Sedona Beige (#12), and both are offered as a bowl only or as a complete two piece. If you are matching existing fixtures across a building, #01 Cotton White is TOTO's standard white and the one most Clayton installs already use.
7) How heavy is a Clayton toilet, and is it a one-person set?
The bowl alone is 62 pounds, and the complete two piece with tank is 98.5 pounds shipped. One person can set the 62 pound bowl on the flange, but plan two for the crated combo or for carrying it up stairs.
How fast can I get the TOTO C784EF#01 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the TOTO C784EF#01 come with a warranty?
Absolutely. The TOTO C784EF#01 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the TOTO C784EF#01?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the TOTO C784EF#01 from ZenSupply?
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every order.
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