Kohler Corbelle 1.28 GPF Comfort Height Two-Piece Elongated Toilet with Revolution 360 Flushing Technology and Left-Hand Trip Lever


Kohler K-3814 Features:

  • Covered under Kohler’s 1 year limited warranty
  • One-piece configuration provides a uniform look and simplifies installation
  • The Corbelle Collection delivers style with a sleek, skirted design
  • Elongated bowl offers comfort and convenience, extending out an extra 1-1/2″ compared to a round configuration
  • Includes left-hand polished chrome trip lever
  • Constructed of durable, easy to clean vitreous china
  • Finish includes CleanCoat®, a technology that prevents the growth of water scale and mineral stains for easier cleaning
  • Installs in a floor mounted configuration with Kohler’s ReadyLock™ installation system
  • Toilet features a powerful gravity flush that will keep your toilet cleaner longer with AquaPiston® and Revolution 360™ swirl flush technology
  • Concealed trapway – provides a smoother and less utilitarian appearance, a built in skirt hides the discharge passageway from view
  • Comfort Height® offers greater accessibility and ease of use with a bowl height of between 16-1/2″ and 18″
  • ADA compliant – complies with the standards for toilets set forth by the Americans with Disabilities Act
  • WaterSense certified – toilet uses 20% less water than the current standard while still maintaining superior performance
  • Toilet does not include seat or supply line

Kohler 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.
  • Revolution 360™: Revolution 360™ swirl flushing technology generates a forceful swirling motion to keep the bowl cleaner, longer.
  • 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.
  • ReadyLock™ Patented ReadyLock™™ installation system is a simple solution for skirted toilets that saves time, hassle, and eliminates the need to drill into the floor for a standard 12-inch rough-in
  • 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.

Kohler K-3814 Specifications:

  • Overall Height: 31-5/16″ (floor to top of tank)
  • Overall Depth: 29-3/8″ (back of tank to front of rim)
  • Overall Width: 16-1/2″ (left edge to right edge of toilet)
  • Bowl Height: 16-1/2″ (floor to bowl rim)
  • Flow Rate: 1.28 (gallons-per-flush)
  • Water Area: 9-3/4″ L x 7-1/4″ W
  • Depth to Water: 6-1/4″ (from rim to water surface)
  • Tank Width: 17-3/4″ (left edge to right edge of tank)
  • Tank Depth: 7-1/4″ (back edge to front edge of tank)
  • Trapway (Discharge Passageway) Size: 2-1/8″
  • Rough-In: 12″ (kits for 10″ and 14″ available)


  • K-3814: This model
  • K-3814-RA: This model with a right hand trip lever

SKU: tcTkk1-23c1118 Categories: , Brand:


Dimensions and Measurements

Bowl Height
16.5 in.
29.375 in.
Gallons Per Flush
31.3125 in.
Product Weight
80 lbs.
Rough In
12 in.
2.125 in.
Water Area
9-3/4 x 7-1/4
16.5 in.

Included Components

Seat Included

Characteristics and Features

Bowl Shape
Concealed Trapway
Two Piece
Flush Type
Gravity Flush
Glazed Trapway
Installation Type
Floor Mounted
Insulated Tank
Vitreous China
Trip Lever Placement
Water Efficient

Manufacturer Technology

Comfort Height
Flush Technology
AquaPiston, Revolution 360

Warranty and Product Information

ANSI Approved
ANSI Certification
ASME Approved
CA Drought Compliant
Revolution 360
CSA Approved
CSA Code
Manufacturer Warranty
1 Year Limited
TX Drought Compliant
WaterSense Certified