Toto CST412MF Bone Aquia Two Piece Elongated 0.9 GPF Comfort Height Toilet with Dual Max Flush System - Less Seat

- Item #: BCI1331289

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Aquia Elongated Dual Flush Toilet Less Seat with 12" Rough-In and Push Button

When it comes to Toto, being just the newest and most advanced product has never been nor needed to be the primary focus. Toto's ideas start with the people, and discovering what they need and want to help them in their daily lives. The days of things being pretty just for pretty's sake are over. When it comes to Toto you will get it all. A beautiful design, with high quality parts, inside and out, that will last longer than you ever expected. Toto is the worldwide leader in plumbing, and although they are known for their Toilets and unique washlets, Toto carries everything from sinks and faucets, to bathroom accessories and urinals with flushometers. So whether it be a replacement toilet seat, a new bath tub or a whole new, higher efficiency money saving toilet, Toto has what you need, at a reasonable price.


  • Dual-Max® Flushing System, Low Consumption (1.6GPFand 0.9GPF)
  • Elongated Skirt
  • Universal Height
  • Close Coupled, Elongated Front Bowl And Tank Set
  • Less Toilet Seat
  • Chrome Push-Button
  • ADA Compliant


  • Min. Water Pressure 8 psi (fl owing)
  • Water Surface 6" x 4-1/2"
  • Trap Diameter 2-1/8"
  • Rough-in 12"
  • Trap Seal 2-1/8"
  • Warranty One Year Limited Warranty
  • Material Vitreous china
  • Shipping Weight CT412F - 80lbs ST412M - 30lbs

Additional Toto Links

Our SKU: Toto CST412MF

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

  • Toto CST412MF#03
  • Toto CST412MF#11
    Colonial White
  • Toto CST412MF#01
  • Toto CST412MF#51
  • Toto CST412MF#12
    Sedona Beige

*Denotes a finish or option that has been discontinued

Toto CST412MF#03 Product Specifications

Specification Sheet
Owners Manual
Parts Sheet
Installation Template
Bowl Height 16.13
Bowl Shape Elongated
Comfort Height Yes
Concealed Trapway Yes
Configuration Two Piece
Depth 27.5
Flush Technology Dual-Max
Flush Type Dual Flush
Flush Valve Size 3
Gallons Per Flush .9, 1.6
Height 31.25
Installation Type Floor Mounted
Insulated Tank No
Length 27.5
Material Vitreous China
Product Weight 110
Rough In 12
Seat Included No
Theme Modern
Trapway 2.125, 2.13
Trip Lever Placement Top
Water Efficient Yes
WaterSense Certified Yes
Width 14.25

Installation Resource Center

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Toto CST412MF Reviews

Rated 3 out of 5 by from aesthetically beautiful but..... just a huge pain to install. I have installed three of these for clients so far . They really really look nice, The skirted base and the whole design looks really pretty. As if you had a one piece toilet instead of a two piece. That being said.. Because it is skirted it locks down toward the rear of the toilet with two screws that screw into two retaining blocks that you have to install onto the floor. This gives the front of the toilet ALOT of wiggle room which i seriously dislike. I had to actually caulk the bottom of the toilet in the front to keep them from moving around. which I really disliked doing. I also had complaints from both clients that even though the two stage flushing is a nice feature the heavier flush doesn't quite finish the job and they have to flush multiple times to clear the bowl. Toto makes another toilet with the skirted design which is upgraded in price but that one installs alot better.
Date published: 2012-09-20
Rated 1 out of 5 by from Poor quality product and service I bought this toilet for a bathroom remodel. Shipped to the house, but left in the box while work was underway for its fixtures. Opening the box revealed it to have a cracked base. The product has a very thin shell where it curves to the floor. Toto's 'helpline' were supremely unhelpful, stepping over the line to be downright rude. Not only would I not recommend this based on the deficient workmanship, but I would steer clear of any / all toto products just based on their complete lack of customer service.
Date published: 2012-05-08
Rated 4 out of 5 by from Aquia Toilet This toilet flushes well. The opening from the bowl into the floor is larger than most. If you have an issue with Toto's customer service it is because you purchased this through the internet and not through your local distributor/plumbing supply house. Warranties are only valid when the product is purchased through the proper channels. This toilet is a "wash-down" model which means it will remove waste, but not necessarily clean the bowl. With the limited water we have available to flush with today, you cannot have both.
Date published: 2012-05-21
Rated 4 out of 5 by from Great look, okay flush I bought this because of the look. It is one nice looking throne. It was super easy to install (they have changed the design so it installs like any normal toilet). The down side is that if you go #2, it can stick to the bowl. It flushes, the solids go down, but you're going to have deal with some stickiness. Unlike another review on here you can get a toilet that flushes the solids, is low flow AND cleans the bowl (I have one in the main bathroom). The water surface area matters. This toilet has very little water surface compared to my other low flush toilet which doesn't leave any "sticky" LOL This toilet is in my powder room so if you have to #2, you go use the other toilet. Over all I'm pleased with it.
Date published: 2013-10-16
Rated 5 out of 5 by from Looks beautiful and works like a dream I never thought I'd say I could love a toilet, but its true! An absolute breeze to clean, looks beautiful, saves water and has never clogged - and this is the only toilet in my home! Since the water line is so low inside the bowl you never get the nasty yellow ring of gunk. Highly recommended, especially with the soft-close seat.
Date published: 2012-06-25
Rated 1 out of 5 by from Very Disappointed We live in rural area on a personal sewer system (septic) and thought that a low-flow, dual flush system would be a good purchase. The name of this product should be a 'no-flow, no-flush' system. We are replacing the toilet with something that actually cleans the bowl when it flushes. So much for saving water when you have to double or triple flush on every use. If you are okay scrubbing your toilet bowl after every use and flushing multiple times then this is the toilet for you!
Date published: 2011-05-21
Rated 5 out of 5 by from excellent toilet Very pleased with both appearance and performance of this Toto toilet. Easy to clean with the smooth lines at the base and looks very modern in my contemporary home. Really like the water saving feature of the low and high flush options. My plumber recommended this toilet and HE gave it a thumb's up for ease of installation.
Date published: 2011-01-31
Rated 5 out of 5 by from Great toilet I love this toilet. I got for my hall bathroom, and I love that there are two options for water flushing. It will save water. And it is so easy to clean, too.
Date published: 2010-12-23
  • CAn you tell what the difference is between the CST412MF and CST464MF

    A. The Toto CST412MF and the Toto CST464MF are the exact same units the only difference is item CST464MF is watersense certified which helps not use as much water.
  • Is there a non-plastic (molded wood?) seat available for this toilet?

    A. The Toto 300 series of toilet seats are wood; I would look for a seat within that collection that has the same specs as the SS204 or SS164 (the recommended seats for this toilet).
  • how do I know what seat to order with it? easy, quiet, slow close....

    A. The Toto CST412MF would use the Toto SS204 toilet seat.
  • What is the difference between comfort height,,universal,,,and ADA

    A. Comfort height and ADA are the same thing. They are both a couple inches taller than a universal size.
  • what is the difference between cst412mf and cst416m?

    A. The Toto CST412MF has a seat, and the CST416M does not.
  • Does this model includes seat? if so, what seat item#? Thanks

    A. This toilet does not include a seat. Toto recommends the SS204 toilet seat
  • what is the part numbher fur the seat?

    A. The Toto CST412MF works with the Toto SS204 elongated SoftClose toilet seat.
  • I am planning to put this in the kids' bathroom, never used a push down this device sturdy? If so, tough enough for young kids and friends?

    A. The Toto CST412MF is a durable toilet and is backed by a one year warranty.
  • Is this toilet comfort height?

    A. The seat for the Toto CST412MF sits 16-1/4 inches off the floor.

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