Model # K-4000-0

Internet #205225961

KOHLER San Souci Touchless Comfort Height 1-piece 1.28 GPF Single Flush Elongated Toilet with AquaPiston Flush in White


San Souci Touchless Comfort Height 1-piece 1.28 GPF Single Flush Elongated Toilet with AquaPiston Flush in White

  • Comfort Height offers chair-height seating (about 2 in. taller)
  • Seat included with purchase
$636.08 /each
Color/Finish: White
  • Almond
  • Biscuit
  • Black Black
  • Cashmere
  • Dune
  • Ice Grey
  • Mexican Sand
  • Sandbar
  • Thunder Grey
  • White

Frequently Bought Together

Product Overview

The San Souci 1-piece toilet offers a sleek, contemporary design combined with KOHLER touchless flush. Just hold your hand over the tank sensor to activate the flush. No handle to touch means fewer germs to pick up or leave behind. This toilet features innovative AquaPiston technology, a patented flush engine that delivers a fast, powerful, and plug-free flush. A 1.28 Gal. flush provides significant water savings of up to 16,500 Gal. per year, compared to a 3.5 Gal. toilet, without sacrificing performance.

  • Flush is activated by a no-touch sensor mounted inside the tank
  • Powered by 4 AA batteries (included)
  • 1-piece toilets integrate the tank and bowl into a seamless, easy-to-clean design
  • Compact elongated bowl offers added comfort while occupying the same space as a round-front bowl
  • Low-profile design
  • Comfort Height feature offers chair-height seating that makes sitting down and standing up easier for most adults
  • 1.28 GPF (gallons per flush)
  • Concealed trap-way and low-profile bolt caps facilitate easier cleaning and enhanced design
  • Includes K-4008 Grip-Tight Reveal Q3 seat
  • Supply line not included
  • Touchless module projects an electromagnetic field through the top of the tank lid that senses your hand, causing the toilet to flush
  • Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trap-way to create a strong siphon during flushing
  • AquaPiston canister allows water to flow into the bowl from all sides (360°), increasing the power and effectiveness of the flush
  • Flush valve's 3:2 ratio harnesses the natural force of gravity and optimizes flush performance
  • Durable canister design has 90% less exposed seal material than a 3 in. flapper, for leak-free performance
  • Light-touch canister flush requires a lower actuation force than a flapper
  • Touchless only adds three simple steps to installation
  • Features to consider when buying a toilet
  • DryLock system saves installation time and helps prevent water leakage

    Kohler San Souci Touchless Toilet

    Kohler AquaPiston Flushing Technology

  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Warranty / Certifications

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Customer Questions & Answers

Doesnt look like there is much of a seat to sit on ?

How about more photos ?
Asked by: DingaLing
The toilet seat is a standard elongated size 13 inches wide and 16 inches long. The height of the seat from the floor is 18 inches.
Answered by: HandymanBill
Date published: 2015-12-17

This toilet is Elongated or compact elongated?

I ask this question Because i do not see the elongated model in the Kohler web site. Thanks
Asked by: apcbnas
Don't understand the difference. Appears elongated to me.
Answered by: FairReviewer
Date published: 2017-01-07

How often does the battery need changing?

Asked by: shopper
Don't know yet. Kohler says 6 months. Had mine 3 months and the ghost flushing issue prob flushed enough to cover 6 months of regular usage and is still going
Answered by: Zulu
Date published: 2016-09-26

It this a gloss finish or a flat finish?

Asked by: lewie
Answered by: Disappointed
Date published: 2015-09-20
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Customer Reviews

San Souci Touchless Comfort Height 1-piece 1.28 GPF Single Flush Elongated Toilet with AquaPiston Flush in White is rated 3.3 out of 5 by 24.
Rated 4 out of 5 by from The SSTC is a well designed, nice looking, and efficient toilet. We purchased two of them and ha... The SSTC is a well designed, nice looking, and efficient toilet. We purchased two of them and have had them about two months. The touchless feature is more sanitary, however, I am not sure that it is worth the extra money. It is very sensitive to flush. You need to pass your hand within an inch of the sensor, not just wave over the top of it. IMHO for this amount of money the SSTC should come with a soft-closing lid but it did not. Purchased two American Standard soft-closing lids because they were the best fitting and best looking. Butt overall it's nice.
Date published: 2016-12-09
Rated 1 out of 5 by from This is an expensive toilet! The top cover does not fit properly. The toilet seat creaks when you... This is an expensive toilet! The top cover does not fit properly. The toilet seat creaks when you sit on it. Very cheap. KOHLER is supposed to be a good name. NOT!!!!! I need two more toilets for my present remodel. They will NOT be KOHLER products!
Date published: 2017-01-06
Rated 1 out of 5 by from Auto flush Bought 2 of these. One lasted 6 months the other 2 years. I loved the toilet while we had it but auto flushing every 20 seconds is (I'm looking for a word)... just tore them both out, no longer using kohler.
Date published: 2016-10-20
Rated 5 out of 5 by from Love our Modern Kohler Toilet LOVE THIS TOILET, most especially the low modern design of it. It looks awesome in our modern bathroom. We liked the first one we bought so much we bought a second for our guest bathroom also. My husband who is a handyman didn't have any problems installing either of them and they both work great. Only drawback is the hand activation mechanism flushes the toilet when wiping the top of the toilet clean. So that wastes water. Maybe there is a way around it that I don't know of. If not, then I probably would prefer the handle over the hand activated. Love the quality, modern design and the price is higher than average but worth it. Thank you for a great product Kohler!
Date published: 2016-07-27
Rated 1 out of 5 by from The FIX Forget Kohler's repair advice. The foam pad they send out to solve the ghost flushing issue doesn't work for long and immediately started to grow mold. Instead cut the foam pad into strips about 1/4 inch wide,you will need 6. Take the tank lid off. There is a raised lip the lid sits on. Apply strips of foam to the left and right side and in the middle of the front. Apply strips on top of each other, 3 spots doubled up. This raises the tank lid and balances it. It still fits properly and secure and lifts the lid enough to allow it to breathe and you can get a finger in under the back. Lifting the lid causes the flush sensor to not work. I had a piece of plastic rod you may be able to use foam strips. Place under the sensor bracket lifting sensor up to match lid lift. This slightly tilts the sensor forward so I gently bent the bracket toward the back making the sensor sit level and my problem has been solved. The toilet works, no ghost flushing so far. I still have some moisture under tank lid but much less than before and it is not dripping onto my sensor. You are welcome Kohler my invoice is in the mail
Date published: 2016-09-25
Rated 4 out of 5 by from Awesome Toilet I LOVE this toilet! It looks great. It has powerful flushing action. The touchless function is better than I thought it would be. I'm really happy with this product
Date published: 2016-10-18
Rated 1 out of 5 by from Garbage - Electronic Portion Fails Within 60 Days Hi, I purchased the K-4000 two months ago and now it will not flush except for taking the lid off and flushing it manually. Before the batteries ran-out of power, the toilet flushed on its own - without human intervention. I changed the batteries twice and now the toilet will not flush at all. There is nothing on the tank lid such as tissue boxes, wet wipes or decorations that can cause the sensor to activate. The chain attached is devoid of any slack. There are no metallic or damp items within 10" of the sensor. Steam is not present when the unit activates and venting in the room excellent. The touchless module or tank lid is NOT wet and there is NO condensation causing the sensor to activate. I'm saddened, troubled and disappointed that an expensive toilet could fail so quickly and hope Kohley will rectify the situation immediately. Thank you.
Date published: 2016-09-15
Rated 1 out of 5 by from Needs work Kohler Nice looking toilet. Took 3 attempts to install, the fancy bolt set up moved twice before I got both lined up properly. Worked nicely at first until moisture trapped under the tank lid starts to cause unnecessary flushing. Kohler took a few weeks to send a fix kit which is basically a foam pad. It worked for a few days and now we are back to ghost flushing running up my water bill. The underside of the tank lid is dripping wet and I am wondering how long before I have mold growing under there. I am a Kohler fan when it comes to sinks and engines but for $700 I am disappointed in this toilet and we are thinking of taking it back to HD.
Date published: 2016-09-19
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