0650531947406

KOHLER

Model K-3658-96

Internet #203779769

Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit

$262.12 /each
  • Comfort Height offers chair-height seating (about 2 in. taller)
  • Class 5 Flush exposes 90% less seal material (see video)
  • Toilet seat sold separately
Color/Finish: Biscuit
  • Almond
  • Biscuit
  • Black Black
  • Sandbar
  • White

Frequently Bought Together

Product Overview

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.

  • 2-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
  • Standard left-hand polished chrome trip lever included
  • Combination consists of the K-4436 tank and the K-4199 bowl
  • Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong siphon during flushing
  • Class Five flushing technology offers plug- and leak-free performance, extraordinary flushing, and better rinsing power for a cleaner bowl
  • Standard 12 in. rough-in
  • 3-bolt installation
  • WaterSense toilets meet strict EPA flushing guidelines, including using at least 20% less water than 1.6 Gal. toilets
  • Eligible for consumer rebates in some municipalities
  • Seat not included
  • Features to consider when buying a toilet

Info & Guides

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Specifications

Dimensions

Details

Warranty / Certifications

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Customer Questions & Answers

7 Questions8 Answers

Customer Questions & Answers

Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit
Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit

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This question is from Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit
 
2 answers

Kohler classic highline comfort 2-piece elongated toilet (K-3658)

This question is from Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit
Asked by
Eric
Arlington, MA
March 20, 2013
Kohler makes this in ice grey, but that color is not on your web site; could you special order it for me, and what would the price be?
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Answers (2)

Asked by
Castro Valley, Ca.
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Home Improvement Profile: DIYer
March 10, 2016
Answer: 
just bought and installed k-3658-96 today. question is how do you adjust amount of water flushed to allow more water into flush cycle? specs say 1.28/flush but my toilet barely allows half of that amount into bowl when flushing.
thanks
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Asked by
KohlerCo.
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March 20, 2013
Answer: 
Thank you for your inquiry. The K-3658 is available in Ice Grey. The model number would be K-3658-95. Please work with your local Home Depot for ordering assistance.
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This question is from Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit
 
1 answer

Is this an insulated tank? Or does this model have a version with an insulated tank to reduce condensation?

This question is from Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit
Asked by
Michigan
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July 19, 2016
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Answer (1)

July 20, 2016
Answer: 
Hello, my name is Leah with KOHLER Customer Service. I am happy to assist you with your toilet question.
I apologize you were unable to find the information you were looking for. I apologize, this Highline model is not a lined tank. The model that is most similar that will have a lined tank is 3999-U-96
Please work with your local Home Depot for pricing and availability on this product.
Thank you
Read More
Hello, my name is Leah with KOHLER Customer Service. I am happy to assist you with your toilet question.
I apologize you were unable to find the information you were looking for. I apologize, this Highline model is not a lined tank. The model that is most similar that will have a lined tank is 3999-U-96
Please work with your local Home Depot for pricing and availability on this product.
Thank you for choosing the Bold Look of KOHLER.
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This question is from Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit
 
1 answer

whats the difference between one piece or a two piece toilet.

This question is from Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit
Asked by
san jose ca
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May 26, 2016
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Answer (1)

May 31, 2016
Answer: 
Hello, my name is Jay with KOHLER Customer Service. I am happy to assist you with your toilet question.
A one piece toilet comes as one piece and doesn’t need to be put together. A two piece with come as a tank and a bowl and you need to assemble it. The 3658-96 is a two piece toilet. For additional assistance on this inquiry, please contact our Customer Care Center at 1-800-4KOHLER.
Read More
Hello, my name is Jay with KOHLER Customer Service. I am happy to assist you with your toilet question.
A one piece toilet comes as one piece and doesn’t need to be put together. A two piece with come as a tank and a bowl and you need to assemble it. The 3658-96 is a two piece toilet. For additional assistance on this inquiry, please contact our Customer Care Center at 1-800-4KOHLER. (1-800-456-4537)
Thank you for choosing the Bold Look of KOHLER. Read Less
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This question is from Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit
 
1 answer

Is this toilet WaterSense certified?

This question is from Highline 2-piece 1.28 GPF Single Flush Elongated Toilet in Biscuit
Asked by
Colorado
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November 30, 2015
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Answer (1)

December 1, 2015
Answer: 
Hello, my name is Jay with KOHLER Customer Service. I am happy to assist you with your toilet question.
The 3658-96 is watersense certified. Please work with your local Home Depot for pricing and availability on this product.
Thank you for choosing the Bold Look of KOHLER.
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Customer Reviews

Rated 4.5 out of 5 by 6 reviewers.
Rated 5.0 out of 5.0 by High quality as expected Packaged well, easy to install, and an overall high quality product. April 26, 2016
Rated 5.0 out of 5.0 by Perfect Match Have been looking for a toilet in a beige color that would match my 25 year old tile. The biscuit was a perfect match. The toilet is environmentally friendly and got a rebate from the water department. And of course, Kohler always lives up to its great reputation. We are super satisfied. December 8, 2015
Rated 5.0 out of 5.0 by Koehler High line toilet Very pleased, matches perfectly & like the water saver & comfort level size. July 21, 2015
Rated 5.0 out of 5.0 by KOHLER HIGH TOILET Oh how nice to be two inches higher. This toilet is amazing. The flush is fast and quiet and does the job immediately. It has a classical design and looks great in the bathroom. I highly recommend this toilet. May 12, 2015
Rated 5.0 out of 5.0 by Totally Satisfied This toilet replaced an eljer that clogged up about once per week. The eljer was a beautiful looking toilet but it was too much trouble. This toilet has NEVER clogged in almost a year. It looks nice and I am now thinking of getting another one for a different bathroom. May 16, 2014
Rated 2.0 out of 5.0 by Had to return it The seat fit and color matched the toilet perfectly, unfortunately, there were bubbles in the finish...so it's going back for a replacement. February 11, 2014
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