KOHLER Highline Classic Comfort Height 2-piece 1.28 GPF Elongated Toilet in Black-K-3658-7 at The Home Depot


Model # K-3658-7

Internet # 203241685

Highline Classic Comfort Height 2-piece 1.28 GPF Elongated Toilet in Black

KOHLER Highline Classic Comfort Height 2-piece 1.28 GPF Elongated Toilet in Black

This item has been discontinued.
The Home Depot no longer carries this specific product.

$353.81 / each


In Stock



Model # K-3658-7

Internet # 203241685

With its clean, simple design and efficient performance, this Highline water-conserving toilet combines both style and function. An innovative 1.28-gal. flush setting provides significant water savings of up to 16,500 gal. per year, compared to an old 3.5-gal. toilet, without sacrificing flushing power. The elongated seat and chair-like height ensure comfortable use.

  • Two-piece toilet
  • Elongated bowl offers added room and comfort
  • Comfort height feature offers chair-height seating that makes sitting down and standing up easier for most adults
  • 1.28 gal. per flush
  • Seat not included ( See K-4684-7 )

Info & Guides

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Assembled Depth (in.)  29.5 in  Assembled Height (in.)  30.375 in 
Assembled Width (in.)  19.625 in  Bowl Height  Standard 
Bowl Rim Height  16.5  Bowl Shape  Elongated 
Certifications and Listings  ADA Compliant  Color Family  Black 
Color/Finish  Black Black  Commercial / Residential  Residential 
Flush Performance Category  Best 8-10  Flush Valve Size (in.)  3.25 
Flushing System  Gravity Fed  Gallons Per Flush  1.28 gal (US) 
MaP Performance Rating  Not Rated  Manufacturer Warranty  One Year Limited 
Material  Vitreous China  Product Depth (in.)  29.5 
Product Height (in.)  30.375  Product Weight (lb.)  93 lb 
Product Width (in.)  19.625  Returnable  90-Day 
Rough In Size  12  Toilet Bowl Height (in.)  16.5 
Toilet Features  No Additional Features  Toilet Included Components  Handle 
Trip Lever Location  Left 


Rated 4.1 out of 5 by 17 reviewers.
Rated 5 out of 5 by Sleek and functional This product is not only sleek and functional it is quiet when you flush it. It works perfectly in any bathroom space including small two piece bathrooms up to a full bath. We bought toliet for the color so that it matched our oak counter tops and black flooring but were pleasantly suprised by the quality and function.... No problems with this product since we intalled them. September 2, 2014
Rated 5 out of 5 by Kohler toilets are the best! We have five baths in our home and we finally have five Kohler toilets! NOTHING stops up these toilets! All of us are over six feet so having 16 1/2 and 17inch toilets are very comfortable! March 11, 2014
Rated 5 out of 5 by Simply beautiful I have wanted to replace the toilet in my guest bath for years. Finally just did it! Got the comfort height BLACK Kohler and it is a beauty. Why did I wait so long? March 4, 2014
Rated 5 out of 5 by should highly recommend getting a new toilet seat with this purchase. should recommend purchasing a new elongated toilet seat at the same time. they are a different size than the one I currently have. this puts off the installation about a week and is an inconvenience. July 29, 2014
Rated 5 out of 5 by a great toilet This toilet does a great job flushing with it's class five technology. It was also easy to install. A good value August 17, 2014
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