KOHLER Highline Black Elongated Tall height 12-in Rough-In WaterSense 1.6 2-piece Toilet (Seat Not Included)

Name: KOHLER Highline Black Elongated Tall height 12-in Rough-In WaterSense 1.6 2-piece Toilet (Seat Not Included)
Brand: KOHLER
SKU: 5000251327
Price: 588.67 USD
Availability: InStock
Rating: 4.4 (553 reviews)

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4.4

553

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Manufacturer Color/Finish: Black

$588.67

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The Highline tall is Kohler's tallest toilet – a full 2-in taller than Comfort Height toilets to provide ultimate accessibility and ease of use. With its clean, simple design and efficient performance, this Highline water-conserving toilet combines both style and function. An innovative 1.28-gallon flush setting provides significant water savings of up to 16,500 gallons per year, compared to an old 3.5-gallon toilet, without sacrificing flushing power.

Two-piece toilet
Elongated bowl offers added room and comfort
Highline tall bowl offers seating 2-in higher than Comfort Height for enhanced comfort, ease of sitting and standing, and gracious accessibility
1.28 gpf (4.8 lpf)
Standard left-hand Polished Chrome trip lever included
Combination consists of the K-4467 tank and the K-22661 bowl
Includes tank, tank accessory pack, tank cover, trip lever, and bolt caps

General
Hardware Color Family	Black	Installation Type	Floor mounted
Outlet Location	Floor outlet	Color/Finish Family	Black
Flush Technology	Gravity fed	Manufacturer Color/Finish	Black
Toilet Seat Mounting	Top-mount	Bowl Shape	Elongated
Material	Vitreous china	Flush Type	Single
Type	2-piece	Flush Lever Location	Left side
Collection Name	Highline	Requires Electricity	No

Dimensions
Trapway Size	2-1/8-in	Assembled Weight (lbs.)	111
Power Cord Length (Feet)	0	Bowl Height	Tall height
Assembled Depth (Inches)	29.5	Bowl Height with Seat	Seat not included
Assembled Height (Inches)	33.25	Bowl Height without Seat	Custom height
Assembled Width (Inches)	18	Rough-In Size	12-in

Features
Deodorizing	No	Self-Cleaning	No
Corner Installation	No	Portable	No
Maximum Flush Rate	1.28 GPF (4.85 LPF)	Remote Control Included	No
Rimless	No	Power Cord Included	No
Seat Secure	No	High Efficiency	Yes
Bidet Function	No	Lined Tank	No
Wax Ring Included	No	Night Light	No
Mounting Bolts Included	Yes	Seat Included	No
Heated Seat	No	Slow Close Feature	No
Rubber Bumpers Included	No	Lowe's Exclusive	No
Skirted	No	Gallons Per Flush	1.28
Low Profile	No	Supply Lines Included	No
Tankless	No	Toilet Kit	No
Macerating/Upflush	No	Flush Lever Included	Yes
Insulated	No

Compatibility
For Commercial Use	No	Smart Compatible	No

Warranty
Warranty	Limited lifetime

Certifications
CA Residents: Prop 65 Warning(s)	No	WaterSense Labeled	Yes
ADA Compliant	No

Miscellaneous
UNSPSC	30181500

Check out the Best Selling Toilets on Lowes.com

Review

4.4 out of 5

553 Reviews

81% Recommend this product

Ratings may include incentivized customer reviews.

Read All Reviews

+ 20

What Customers Are Saying

The product offers an elevated seat height that is praised for being comfortable and easy to use, especially for taller individuals or those with mobility issues. The flushing performance is generally described as powerful, quiet, and efficient, though a few reviewers noted issues with handling larger solid waste. Some customers found the height too tall for their needs, and the lack of an included toilet seat was also mentioned as a downside.

Customer review summary generated by AI, including incentivized reviews.

553 Customer Reviews

Sort By

Love it, the people at Lowe’s were awesome. The product is fantastic

SnipJuly 17, 2026
From Highline White Elongated Tall height 12-in Rough-In WaterSense 1.6 2-piece Toilet (Seat Not Included) Verified Purchaser

Was this Review Helpful ?

great height and quality product

perfect height to help with back issues. The seat is larger adding height and of course the Kohler quality is unsurpassed.

AlleyMay 10, 2026

From kohler.com

Perfect Height!

Would Recommend

Love the Height and Shape!

Sjane39April 25, 2026
From Highline Biscuit Elongated Tall height 12-in Rough-In WaterSense 1.6 2-piece Toilet (Seat Not Included) Verified Purchaser

Was this Review Helpful ?

Doesn't come with seat

SassyApril 23, 2026
From Highline Biscuit Elongated Tall height 12-in Rough-In WaterSense 1.6 2-piece Toilet (Seat Not Included) Verified Purchaser

Was this Review Helpful ?

Great height

Would Recommend

19” was so perfect for people with knee issues.

Obie1025April 16, 2026
From Highline White Elongated Tall height 12-in Rough-In WaterSense 1.6 2-piece Toilet (Seat Not Included) Verified Purchaser

Was this Review Helpful ?

Better on my back

It came in two separate shipments and about 2 weeks in between, that was frustrating but other than that, I am very happy with it. Having a bad back and not having to lower myself so far down helps minimize back spasms. I did have to purchase a stool to put my feet on because it’s high but working! I am 5 foot 8, someone shorter may want to consider the comfort toilet height instead of the tall so your feet can touch the ground.

Mary JJanuary 6, 2026

From kohler.com

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