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Home Improvement > Bathroom Fixtures > Toilets > Part #: CST416M
877-WAYFAIR (877-929-3247)|SKU #: TOT4691

Toto Aquia II Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet

(View all from Toto)


List Price: $550.00

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Toto Aquia II Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet

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

Decorative, high profile two piece toilet. Dual flush (1.6 GPF / 0.9 GPF) performance option to allow appropriate water usage. Tank cover, fittings, chrome plated push button, less seat.


  • Dual-max flushing system
  • Elongated skirted design
  • Push button style flush option
  • Upgrade with an oval SoftClose seat
  • WaterSense certified
  • Large, fully glazed trapway
  • Aquia collection
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  • Overall: 30.25" H x 15.25" W x 27.5" D
  • Overall Product Weight: 97lbs

Toto Aquia II Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet

Weights & Dimensions

  • Overall: 30.25" H x 15.25" W x 27.5" D
  • Tank: 15.25" W
  • 2.13'' Trap seal
  • Seat Height: 16.38"
  • Overall Product Weight: 97lbs


Product Type: Two-Piece ToiletFinish: 1: Beige
Finish: 2: BoneFinish: 3: Cotton
Finish: 4: WhiteStyle: Traditional
Mounting Type: Floor MountedFlush Type: Direct Flush; Dual Flush; Water Saving
Gallons Per Flush: 1.6 GallonsSeat Included: Yes
Bowl Shape: ElongatedCountry of Manufacture: China


Installation Required: 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 II Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet 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 II Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet


“Hi, can you tell me if any Toto washlet fits this toilet?” asked by Simone

"Hello Simone, a number of the Toto washlets fit this toilet. Models E200, C110, B100, and S300/S300e/S350e all fit this product." Brandon from Wayfair


“Hi, what are the dimensions of this toilet?” asked by Helen

"Hi Helen, the dimensions of this toilet are 30.25" H x 15.25" W x 27.5" D." Parker from Wayfair

Still have questions about this product? We're here to help

When you buy a Toto Aquia II Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet 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 #: CST416M 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 II Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet or shop for your entire home, Wayfair has a zillion things home.
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Customer Reviews

Tell Us What You Think!

Tell us what you think about the Aquia II Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet. 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 8 reviews)

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very satisfied

John Beatty from Jackson, WY– Verified Buyer

first, the toilet is beautiful and works very well in small & large flushing. it gets the job done. No problems with operation or installation. however, your listing this item as aquia LI is incorrect as aquia I has been discontinued and replaced by aquia II. aquia I has an open back design with a pvc trap that sticks out the back of the base of the toilet. The aquia II which is the model you sold me, is a much better design, no funky pvc trap piece and closed base design make this unit much more desirable. wayfair had the best price on this unit, but the better part of the savings went away after charging $140.00 for shipping on an item that was advertised as with free shipping. this would not be so bad if delivery was timely, but this was not the case. at least it arrived unbroken, so i guess i should'nt complain too much.

Was this helpful? Yes11 No0

Beauty and Toilet Humor Too

Irene from mt vernon., NY– Verified Buyer

The elegant shape alone is worth the price. Added feature on top. Within one small chrome circle, two semi-circle push buttons. Button number one for less water and button number two for more water. Use your imagination.

Was this helpful? Yes5 No0


Jennifer from Kansas– Verified Buyer

Love TOTO toilets. Nice contemporary design. TOTO always provides great flushing technology - can't beat it.

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Great Quality

from CA– Verified Buyer

I'm really happy with my purchase of this toilet. The quality is good and everything I expected it to be and delivery was on time.



Elizabeth from Cape Cod, MA– Verified Buyer– Top 1000 Reviewer

These toilets are simple, unobtrusive and work well. What else can you ask for?

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from Ontario


– Verified Buyer


from Louisiana


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Aquia II Dual Flush 1.6 GPF / 0.9 GPF Elongated 2 Piece Toilet is also sometimes listed under the following manufacturer numbers: CST416M#01, CST416M#03, CST416M#11, CST416M#12, CST416M#51