Highline 1.6 GPF Elongated Two-Piece toilet (Seat Not Included), White, Left-Hand

Highline 1.6 GPF Elongated Two-Piece toilet (Seat Not Included) K-6393-0

ByKohler

$466.65 was~~$546.15~~

15% Off

{BOLD_AS_LOW_AS}{BOLD_AFFIRM_REUSE_TITLE_SECTION_1}or 0% APR with Affirm

Earn $23.33 in rewards, with 5% back¹, plus more exclusive perks

Finish:

White

Lever Location:

Left-Hand

FREE 3-Day Delivery

Get it by Sat, Aug 8

43215

Get $40 off your qualifying first order of $100+** with the Wayfair Credit Card! Offer ends 8/10/2026. **

Apply Now

Get Everything You Need

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At a Glance

Toilet Seat Height: 16.5 ''

Rough-In Size: 10 ''

Product Warranty

Flush Type: Dual

About This Product

This KOHLER® Highline dual-flush toilet combines water savings with powerful flush performance. An innovative two-tone flush lever offers the choice of 1.1 or 1.6 gallons per flush; the dual-flush lever is located on the side of the tank like a traditional two-piece elongated toilet, leaving the top free for storage. The high-efficiency 1.1-gallon flush reduces water use by more than 30% over the 1.6-gallon mode, which adds up to potential water savings of more than 4,000 gallons per toilet, per year.

What's Included?

Bolts

Not Included:

Toilet Seat
Wax Ring Kit
Supply Line

Features

An elongated bowl offers added room and comfort
Comfort height® feature offers a chair-height seat that makes sitting down and standing up easier for most adults.
The combination consists of the K-4373 bowl and the K-4458 tank
Eligible for consumer rebates in some municipalities
The left-hand nested trip lever offers a choice
Refer to Spec Sheets for Required and Compatible parts to complete installation
Dual-flush technology allows you to choose between a full or partial flush
EPA WaterSense® certified product that uses at least 20% less water than the current federal standard
Kohler Toilets and Seats Limited Warranty
2-1/8" (54 mm) fully glazed trap way
10" (254 mm) rough-in
Three-bolt quick-connect installation

Customer Reviews

Rated 4.5 out of 5 stars.

62 Reviews

Customers say

Customers praise this product's high quality, ease of installation, and attractive design. The dual-flush feature is a popular highlight, though some experienced minor issues with its functionality. While most found the product sturdy and well-made, a few noted concerns about the seat not being included.

AI-generated from customer reviews

Highline 1.6 GPF Elongated Two-Piece toilet (Seat Not Included) K-6393-0

ByKohler

$466.65 was~~$546.15~~

15% Off

{BOLD_AS_LOW_AS}{BOLD_AFFIRM_REUSE_TITLE_SECTION_1}or 0% APR with Affirm

Earn $23.33 in rewards, with 5% back¹, plus more exclusive perks

Finish:

White

Lever Location:

Left-Hand

FREE 3-Day Delivery

Get it by Sat, Aug 8

43215

Get $40 off your qualifying first order of $100+** with the Wayfair Credit Card! Offer ends 8/10/2026. **

Apply Now

Get Everything You Need

Devonshire Toilet Tissue Holder

Minimal Toilet Tissue Holder

Sale

Kumin Covered horizontal toilet paper holder

Sale

Composed Vertical Toilet Paper Holder

At a Glance

Toilet Seat Height: 16.5 ''

Rough-In Size: 10 ''

Product Warranty

Flush Type: Dual

About This Product

What's Included?

Bolts

Not Included:

Toilet Seat
Wax Ring Kit
Supply Line

Features

An elongated bowl offers added room and comfort
Comfort height® feature offers a chair-height seat that makes sitting down and standing up easier for most adults.
The combination consists of the K-4373 bowl and the K-4458 tank
Eligible for consumer rebates in some municipalities
The left-hand nested trip lever offers a choice
Refer to Spec Sheets for Required and Compatible parts to complete installation
Dual-flush technology allows you to choose between a full or partial flush
EPA WaterSense® certified product that uses at least 20% less water than the current federal standard
Kohler Toilets and Seats Limited Warranty
2-1/8" (54 mm) fully glazed trap way
10" (254 mm) rough-in
Three-bolt quick-connect installation

Highline 1.6 GPF Elongated Two-Piece toilet (Seat Not Included) K-6393-0

Get Everything You Need

Devonshire Toilet Tissue Holder

Minimal Toilet Tissue Holder

Kumin Covered horizontal toilet paper holder

Composed Vertical Toilet Paper Holder

At a Glance

30-Day Return Policy

Customer Reviews

Customers say

Customer Reviews

Customers say

Highline 1.6 GPF Elongated Two-Piece toilet (Seat Not Included) K-6393-0

Get Everything You Need

Devonshire Toilet Tissue Holder

Minimal Toilet Tissue Holder

Kumin Covered horizontal toilet paper holder

Composed Vertical Toilet Paper Holder

At a Glance

30-Day Return Policy

Highline 1.6 GPF Elongated Two-Piece toilet (Seat Not Included) K-6393-0

Get Everything You Need

Devonshire Toilet Tissue Holder

Minimal Toilet Tissue Holder

Kumin Covered horizontal toilet paper holder

Composed Vertical Toilet Paper Holder

At a Glance

Description

Specifications

Return Policy

Customer Reviews

Customers say

Customer Reviews

Customers say

Highline 1.6 GPF Elongated Two-Piece toilet (Seat Not Included) K-6393-0

Get Everything You Need

Devonshire Toilet Tissue Holder

Minimal Toilet Tissue Holder

Kumin Covered horizontal toilet paper holder

Composed Vertical Toilet Paper Holder

At a Glance

Description

Specifications

Return Policy