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Kohler K-3811-96 Biscuit Santa Rosa 1.6 GPF One-Piece Elongated Comfort Height Toilet with AquaPiston Technology - Seat Included

Item #: BCI1796254
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Product Details for the Kohler K-3811-96 in Biscuit

Product Features:

  • One-piece configuration provides a uniform look and simplifies installation
  • Elongated bowl offers comfort and convenience, extending out an extra 1-1/2" compared to a round configuration
  • Covered under Kohler's 1 year limited warranty
  • The Santa Rosa toilet offers exceptional functionality with a small footprint
  • Constructed of durable, easy to clean vitreous china
  • Installs in a floor mounted configuration
  • Features a powerful gravity flush with AquaPiston technology
  • ADA compliant - complies with the standards for toilets set forth by the Americans with Disabilities Act
  • Comfort Height - designed for ease of use, with a higher than average bowl
  • Includes a Brevia Q2 seat and cover

Product Technologies / Benefits:

  • AquaPiston: AquaPiston single flush canister technology uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong, efficient siphon during flushing. The canister flush valve's 3:2 ratio optimizes flush performance and resists warping and deterioration, while its durable design features 90% less exposed seal material than a standard 3-inch flapper flush valve, guaranteeing leak-free performance. The light-touch canister requires lower activation force than a flapper, and once activated, allows water to flow into the bowl from all sides (360 degrees), increasing each flush's power and effectiveness.
  • Comfort Height: Comfort Height toilets offer the greatest accessibility and ease of use with a bowl height of between 16-1/2" and 18", the same as a standard chair.

Product Specifications:

  • Overall Height: 28-3/16" (measured from bottom of base to top of tank)
  • Overall Depth: 27-3/4" (measured from back of tank to front of rim)
  • Overall Width: 18-3/4" (measured from rightmost to leftmost edge of toilet)
  • Bowl Height: 16-1/2" (measured from floor to bowl rim)
  • Flow Rate: 1.6 GPF (gallons per flush)
  • Water Area: 11" x 8-1/8" (inner rim dimensions of bowl, length x width)
  • Water Depth (from Rim): 6-1/4"
  • Tank Width: 18-3/4" (measured from leftmost to rightmost edge of tank)
  • Tank Depth: 6-9/16" (measured from back edge to front edge of tank)
  • Trapway (Discharge Passageway) Size: 2-1/8"
  • Distance Between Toilet Seat Installation Holes: 5-1/2"
  • Rough-In: 12"

Variations:

  • K-3811: This model
  • K-3811-Touchless: This model with Touchless flush
  • K-3323: This model with standard height bowl
  • K-3810: 1.28 GPF version of this model

About Kohler:

Gracious living is characterized by qualities of charm, good taste, generosity of spirit, and the enhancement of nature. It is Kohler's mission that you improve your sense of gracious living with every experience you have with a Kohler product or service. Kohler lives on the leading edge of design and technology, while maintaining a constant level of quality, regardless of price. It sets the standard of excellence in its field, and yet is constantly striving to improve. From sustainable products in the kitchen and bath to power systems that protect data centers and urban landscapes all over the world - this is what the Kohler company is all about.

Our SKU: Kohler K-3811

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

*Denotes a finish or option that has been discontinued

Kohler K-3811 Reviews

Rated 2 out of 5 by from Kohler 3811 Toilet This has the "new" style flush. No flapper--it has a cylinder that raises up to let the water flush very rapidly. Mine leaked from reservoir from day one--about 2 gallons a day. Kohler sent a new seal, which didn't correct the problem. They are sending a whole new flush mechanism, but it is on backorder and will take a month. Not sure this better "mousetrap" of a flushing mechanism is good. The old style flappers have the weight of the water in the tank helping to make a good seal. These cylindars are light and don't have weight to make a good seal. I wouldn't recommend this one.
Date published: 2012-11-30
Rated 5 out of 5 by from Kohler one piece toilet Santa Rosa 1.6 Kohler is a great product, I was told that the inner makings on their most expensive models are exactly the same as the less expensive models. It looks and works great. The only negative is the sound it makes when it flushes is a bubbling, gurgling noise, quite loud and if your bath is off the bedroom, at night it will wake your spouse. I guess that is to be expected from all the 1.6 gal and less flushes. It is not as elongated as others but we wanted that due to space restraints.
Date published: 2013-01-29
Rated 5 out of 5 by from Great toilet This toilet looks sleek and modern. The flush is amazing. Best price.
Date published: 2013-09-03
Rated 5 out of 5 by from Looks great Hard to get excited about a toilet, but this one looks great, the height is very comfortable. I wish I had gotten it last year before my hip replacement. I bought this model because of the larger flush (1.6 L). The one piece tank makes cleaning easier.
Date published: 2014-05-28
Rated 5 out of 5 by from Don't worry........great flush. I drove myself crazy reading reviews about how this toilet flushes! This is the 2nd Kohler Santa Rosa 1.6 I've installed in the last three months. Looks great in Ice Grey and no problems with performance.
Date published: 2014-03-31
Rated 5 out of 5 by from Beautiful black toilet Beautiful black toilet looks great on my black marble floor. It has a stunning look, and I loveit that it is a one piece toilet! Easy to clean.
Date published: 2014-04-18
Rated 5 out of 5 by from Kohler Black Santa Rosa Comfort Height Toilet Exactly as shown, prompt delivery! The height is just what we wanted. Flushes well.
Date published: 2014-07-31
Rated 3 out of 5 by from Not worth the money Toilet doesn't clean with one flush. I've recently tried Kohler, American Standard and Jaccuzi and none of them flush as good as the old ones.
Date published: 2014-08-04
5 Questions from the Community
Loading nanoRep

does this come with a soft-close seat?

The Kohler K-3811 comes with Brevia with Q2 Advantage Seat. You would need to order a different seat if you wanted the soft close seat.

how high is the seat ?

The Kohler K-3811 sets the seat 16 1/2" from the ground.

What is the weight?

The Kohler K-3811 weighs 101 lbs.

Is the height of the bowl 16 1/2 inches?

The Kohler K-3811 bowl height is 16.5".

What is the product number for a soft close seat ?

The Kohler K-3811 does include a seat. However, a compatible soft close seat would be a K-4636.

Low Flow Toilet Restrictions

This item cannot be shipped to the following location(s): CA, TX

Kohler K-3811 Technical Specs

ADA Yes
Bowl Height 16.5
Bowl Shape Elongated
Comfort Height Yes
Concealed Trapway No
Configuration One Piece
Country Of Origin USA
Depth 27.75
Flush Type Gravity Flush
Gallons Per Flush 1.6
Height 28.18
Installation Type Floor Mounted
Length 27.75
Low Profile Yes
Made in America Yes
Material Vitreous China
Rough In 12
Seat Included Yes
Theme Basic
Trapway 2.13
Trip Lever Placement Left
Width 18.75

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