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Home Improvement > Bathroom Fixtures > Toilets > Part #: CST412MF-12
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Toto Aquia Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet with 12" Rough-In

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Toto Aquia Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet with 12" Rough-In

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


  • Toilet seat not included
  • Dual-max flushing system, low consumption (1.6GPF/6.0LPF & 0.9GPF/3.4LPF)
  • Elongated skirt
  • Universal height
  • Close coupled, elongated front bowl and tank set, less toilet seat
  • Dual flush option
  • Chrome push-button
  • ADA compliant
  • Aquia collection
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Product Details:

  • Product Type: Two-Piece toilet
  • Mounting Type: Floor mounted
  • Flush Type: Direct flush; Dual flush; Water saving
  • Gallons Per Flush: 1.6 Gallons
  • ADA Compliant: Yes
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  • Overall: 31.25" H x 15.38" W x 27.5" D
  • Seat Height: 17.13"
  • Rough In Size: 12"

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Toto Aquia Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet with 12" Rough-In

Weights & Dimensions

  • Overall: 31.25" H x 15.38" W x 27.5" D
  • Tank: 15.38" W
  • Seat Height: 17.13"
  • Rough In Size: 12"


Product Type: Two-Piece toiletFinish: 1: Bone
Finish: 2: CottonFinish: 3: White
Style: TraditionalMounting Type: Floor mounted
Flush Type: Direct flush; Dual flush; Water savingGallons Per Flush: 1.6 Gallons
Bowl Shape: ElongatedComfort Height: Yes
Eco-Friendly: YesCountry of Manufacture: China


Installation Required: Yes 


ADA Compliant: Yes 

About the Manufacturer

For over 80 years, Toto has been committed to producing superbly designed, high performance products. They go beyond simply providing you with attractive products in various colors. They focus on creating products with consistent, exceptional performance and design.

TOTO is the largest toilet manufacturer in the world, producing more than 7 million toilets annually. With over 1,500 engineers on staff, they're an industry leader in performance, technology, and innovation. In order to meet their growing demand, Toto has constructed two US manufacturing plants to produce their complete line of bathroom fixtures. Every TOTO Product Undergoes A Scrutinizing Inspection Process Under a Discriminating Eye

Their state-of-the-art plant in Morrow, GA is outfitted with some of the most technologically advanced equipment in the industry. From their molding process to the finishing touches, their products are constructed and fine-tuned with computer precision. But they also feel that certain stages in the process demand the human touch. And that's where their professionally trained personnel come in to inspect products that they sell. Ensuring you receive quality bathroom fixtures you can rely on.

Toto's success demands an ongoing pursuit of perfection. It's a pursuit that pushes them beyond industry standards. A pursuit that drives them to become one of the most decorated toilet manufacturers in the world. It is quite simply, the passionate pursuit of perfection.

Nearly a century of experience. An industry leader offering performance, technology, and innovation. Perfect balance in form and function. This is what you should expect from your bathroom fixtures. This is TOTO. Perfection by design.


The Aquia Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet with 12" Rough-In is a Traditional style product. Traditional style furniture and decor tends to look heavy with an heirloom type quality. Common wood tones are darker shades of mahogany and walnut. Traditional style tends to feature pieces with tufted cushions and nailhead accents. You can shop for more Traditional Toilets in the Home Improvement section of our site.

Toto Aquia Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet with 12" Rough-In

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When you buy a Toto Aquia Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet with 12" Rough-In online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Toto Part #: CST412MF here. If you have any questions about your purchase or any other Toilets product for sale our customer service representatives are available to help.Whether you just want to buy a Toto Aquia Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet with 12" Rough-In or shop for your entire home, Wayfair has a zillion things home.
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Customer Reviews

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Tell us what you think about the Aquia Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet with 12" Rough-In. It will help us provide you with better products in the future and help your fellow Wayfair shoppers make better purchases.

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Average Overall Rating
(based on 9 reviews)

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Best toilet ever!

Lise Buisson from Toronto, ON– Verified Buyer

I've had this toilet for a month now, and a few thoughts:
- It's a full skirt toilet, so more work to install, but not overly-complicated.
- you have to order the seat separately. I didn't know, so I had a seatless toilet for awhile!
- I "chatted" customer service thinking they'd forgetten to ship it, and they were amazing... fast, efficient, polite.
- It's a regular size toilet, but its design makes it look smaller. It makes my very small bathroom look bigger.
- the dual flush is brilliant, and the 0.9 is strong enough for most needs. So far, I've used the 1.6 only once. I feel thoughroughly green!

Was this helpful? Yes3 No0

Just As Expected!

Edward from MA– Verified Buyer

This is a very good quality toilet. The size is perfect and it's not hard to install. Looks just as the picture shows, and the dimensions are accurate.

Was this helpful? Yes1 No0

As described...

Elana from Phoenix, AZ– Verified Buyer– Top 100 Reviewer

This is quite an elegant toilet! Having such a smooth base without all of the nooks and crannies is amazing for easy cleaning!! Soft close lid works perfectly and the dual flush is fantastic for helping conserve some water. Great product!

Was this helpful? Yes0 No0

Toto is the best!

Sandra Lampe from Madison, WI– Verified Buyer

Great toilet! Easy installation, dual flush that works well and saves water, straight skirt for easy cleaning, nice contemporary style. Have put them in every bathroom in my house.

Was this helpful? Yes4 No0

Eun Lee

EUN from OAKLAND GARDENS, NY– Verified Buyer

It is absolutely beautiful and functional toilet by far..
I want to change all my toilet to Toto in the future.
Love the dual flush especially, it serves the purpose perfectly!

Was this helpful? Yes2 No0

I love this toilet!

Barry from Lakewood,– Verified Buyer

Nice clean look. One of Totos nices and popular looks.

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Ward Edmonds from Huntsville, ON– Verified Buyer– Top 500 Reviewer

I would highly reccomend any Toto product as well as Wayfair. Both are stand up companies and put customer satisfaction first.

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from District of Columbia– Verified Buyer


Jennifer from Pennsylvania– Verified Buyer

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Aquia Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet with 12" Rough-In is also sometimes listed under the following manufacturer numbers: CST412MF#01, CST412MF#03, CST412MF#11, CST412MF#51, CST412MF-12