Kohler K-3812-7 Black Black Memoirs Classic 1.28 GPF One-Piece Elongated Comfort Height Toilet with AquaPiston Technology - Seat Included

Item #: bci1703554
View the entire Memoirs Classic Collection
Limited time only Offer Ends 8/31/2016

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Product Details for the Kohler K-3812-7 in Black Black

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

  • Wax Ring Kit Required

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 Memoirs Classic Collection is inspired by elegant architecture and traditional crown molding
  • 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
  • WaterSense certified - toilet uses 20% less water than the current standard while still maintaining superior performance
  • Includes a Glenbury soft close 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.
  • WaterSense Certified Product: To help make a difference on a global scale and to further its role as an industry leader in eco-performance practices, Kohler has established partnerships with a number of environmental organizations, including WaterSense. Many Kohler faucets and toilets are equipped with low-flow technology - they use less water, while continuing to meet superior performance standards.

Product Specifications:

  • Overall Height: 28-5/8" (measured from bottom of base to top of tank)
  • Overall Depth: 28-1/8" (measured from back of tank to front of rim)
  • Overall Width: 17-3/4" (measured from rightmost to leftmost edge of toilet)
  • Bowl Height: 16-1/4" (measured from floor to bowl rim)
  • Flow Rate: 1.28 GPF (gallons per flush)
  • Water Area: 11" x 8-3/4" (inner rim dimensions of bowl, length x width)
  • Water Depth (from Rim): 6"
  • Tank Width: 17-3/4" (measured from leftmost to rightmost edge of tank)
  • Tank Depth: 7-1/4" (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"


  • K-3812: This model
  • K-3812-RA: This model with right hand trip lever
  • K-3812-Touchless: This model with Touchless flush
  • K-3813: Memoirs Stately 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-3812

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

*Denotes a finish or option that has been discontinued

Kohler K-3812 Reviews

Rated 5 out of 5 by from Stylish Toilet that Matches Bathroom - Wife Happy A little pricey, to me, for a toilet but the color matches other blush items in our bathroom so my wife is happy. It is a high quality Kohler toilet that came with a slow close seat and lid that matches. I just wanted to mention this since I bought one separately because it said online that you needed one this was the only, minor, disappointment.
Date published: 2013-08-26
  • 2016-08-23T07:20CST
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4 Questions from the Community
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want to compare this one with two piece

The two piece model is the K-3818. We will send this item to you in a cart VIA email. Thanks for your question and have a great day!

what is the tallest memiors I can buy?

The Kohler K-3812 tallest memoirs collection toilet you can buy is this one, because it is a one piece toilet, it only comes in the comfort height. Thanks for your question and have a great day!

what is the tallest memoirs toilet?

The Kohler K-3812 tallest memoirs collection toilet you can buy is this one, because it is a one piece toilet, it only comes in the comfort height. Thanks for your question and have a great day!

Is there any disadvantages to the one piece toilet compared to the two piece and what does watersense certified mean and flush type

A one piece looks aesthetically better and wont loosen over time. A siphon jet is very effective and water sense only uses 1.28 gallons to flush.

Puretide Elongated Bidet Toilet Seat with Quiet-Close, Quick-Release, and Quick-Attach

Kohler K-3812 Technical Specs

Bowl Height 16.25
Bowl Shape Elongated
CA Drought Compliant Yes
Chair Height Yes
Comfort Height Yes
Concealed Trapway No
Configuration One Piece
Country Of Origin USA
Depth 28.125
Flush Technology Class Five
Flush Type Siphon Jet
Flush Valve Size 3.25
Gallons Per Flush 1.28
Height 28.625
Installation Type Floor Mounted
Insulated Tank No
Made in America Yes
Material Vitreous China
Rough In 12
Seat Included Yes
Theme Traditional
Trapway 2.13
Trip Lever Placement Left
Water Efficient Yes
WaterSense Certified Yes
Width 17.75

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