Kohler Tresham 1-Piece 1.28 GPF Elongated Toilet with Puretide Manual Bidet Toilet Seat

Model: K-3981-5724-0

Finish: Choose Finish
  • White
    94 In Stock

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94 In Stock
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Product Overview

The elegant simplicity of Shaker-style furniture inspires the edgy, neo-traditional design of the Tresham collection. The Tresham Comfort-Height one-piece toilet is accented by an elegant trim that recalls architectural molding and offers an eclectic twist on classic Americana traditions. Complement the Tresham collection as well as a variety of styles from classic to modern.

The Puretide cleansing toilet seat makes it easy to add the freshness and assurance of personal cleansing to your existing toilet. With a sleek, low-profile seat design, Puretide provides the superior cleansing of a spray wand that's fully adjustable for position and water pressure. This manual cleansing seat requires no electricity or batteries and installs in minutes, connecting to the toilet's water supply line.

Kohler K-3981-5724 Features:

  • Toilet under Kohler's 1 year limited warranty and seat under Kohler's 3 year limited warranty
  • Toilet constructed of vitreous china and seat constructed of plastic for durability and dependability
  • One-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
  • Comfort Height feature offers chair-height seating that makes sitting down and standing up easier for most adults
  • 1.28 gallons per flush
  • Skirted trapway simplifies cleaning
  • Standard left-hand polished chrome trip lever included
  • Patented ReadyLock installation 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
  • Coordinates with other products in the Tresham collection
  • Single wand provides ambient-water cleansing
  • Adjust water spray position and pressure using the convenient side handle
  • Self-cleaning wand automatically rinses after each use
  • Manually operated handle requires no batteries or electrical power
  • Quiet-Close lid closes slowly and quietly without slamming
  • Quick-Release hinges allow seat to be unlatched from toilet for easy removal and convenient cleaning; no tools required
  • Quick-Attach hardware for fast and secure installation
  • Grip-Tight bumpers add stability and prevent shifting
  • Ergonomically designed for comfortable seating

Kohler K-3981-5724 Technologies and Benefits:

  • Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong siphon during flushing
  • AquaPiston canister allows water to flow into the bowl from all sides (360 degrees), 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-inch flapper, for leak-free performance
  • Light-touch canister flush requires a lower actuation force than a flapper


  • Standard 12-inch rough-in
  • 10-inch and 14-inch rough-in kits are also available
  • Supply line not included
  • Bidet seat requires connection to toilet water supply line
  • All hoses and connections are included
  • Requires Phillips screwdriver and adjustable wrench for installation

Water Conservation & Rebates:

  • WaterSense toilets meet strict EPA flushing guidelines, using at least 20 percent less water than 1.6-gallon toilets
  • Eligible for consumer rebates in some municipalities
  • This product meets water savings requirements for California Energy Commission (CEC), CALGreen, and Colorado SB 14-103

Kohler K-3981-5724 Specifications:

  • Overall Height: 28-1/2" (from bottom of the base to the highest point of the toilet)
  • Overall Depth: 27-3/4" (furthest point back to front of toilet)
  • Overall Width: 17-5/16" (furthest point left to furthest point on the right)
  • Bowl Height: 16-1/2" (floor to the top of the bowl)
  • Flow Rate: 1.28 gallons-per-flush
  • Trapway (Discharge Passageway) Size: 2-1/8"
  • Rough-In: 12"

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

Dimensions and Measurements

Bowl Height
16.5 in.
27.75 in.
Flush Valve Size
3 in.
Gallons Per Flush
28.5 in.
Product Weight
50 lbs.
Rough In
12 in.
2.125 in.
17.3125 in.

Included Components

Bidet Seat Included
Seat Included

Characteristics and Features

Bowl Shape
One Piece
Design Features
Concealed Trapway, Soft Close, Chair Height
Flush Type
Gravity Flush
Installation Type
Floor Mounted
Plastic, Vitreous China
Seat Front
Trip Lever Placement
Water Efficient

Manufacturer Technology

Flush Technology

Warranty and Product Information

Approved for Commercial Use
CA Drought Compliant
Country Of Origin
CSA Code
Manufacturer Warranty
3 Year Limited, 1 Year Limited
TX Drought Compliant
WaterSense Certified