Model # K-3639-58

Internet #205743709

KOHLER Archer 1-piece 1.28 GPF Single Flush Elongated Toilet in Thunder Grey


Archer 1-piece 1.28 GPF Single Flush Elongated Toilet in Thunder Grey

  • Standard height seating
  • Quiet-Close toilet seat included
  • KOHLER AquaPiston releases water from 360 degrees around
$75615 /each

Choose Your Options

Thunder Grey
  • Almond
  • Biscuit
  • Black Black
  • Cashmere
  • Dune
  • Ice Grey
  • Mexican Sand
  • Sandbar
  • Thunder Grey
  • White
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Frequently Bought Together

Product Overview

With beveled edges and graceful curves, the timeless style of this Archer toilet comes with an exceptional level of comfort and water conservation. A high-efficiency 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 performance. The included seat and lid come to a gentle close and unlatch for easy cleaning.

  • 1-piece toilets integrate the tank and bowl into a seamless, easy-to-clean design
  • Elongated bowl offers added room and comfort
  • 1.28 GPF (gallons per flush)
  • 2-1/8 in. glazed trap-way
  • Standard left-hand polished chrome trip lever included
  • Cachet quiet-close seat with quick-release functionality allows seat to close quietly and quickly unlatch from the toilet for easy removal and convenient cleaning
  • Supply line not included
  • Coordinates with other products in the Archer collection
  • Features to consider when buying a toilet

Info & Guides

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Bowl Height without Seat (in.)
Flush Valve Size (in.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Bowl Height
Bowl Shape
Color Family
Thunder Grey
Commercial / Residential
No Additional Features
Flushing Mechanism
Gravity Flush
Flushing Technology
Gravity Fed
Flushing Type
Single Flush
Gallons Per Flush
MaP Performance Rating
Vitreous China
Mount Location
Floor Mount
Product Weight (lb.)
Rough In Size
Toilet Type
Trapway Diameter (in.)
Trip Lever Location
Left Side

Warranty / Certifications

Certifications and Listings
EPA Approved
Manufacturer Warranty
1-Year Limited Warranty

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Customer Questions & Answers

What finish is the handle on this?

Does the flush handle come with the toilet? Can I get the handle with the Vibrant Brushed Nickel finish?
Asked by: MnMitch
Yes the handle comes with the toilet but in nickle finish
Answered by: Unkie
Date published: 2016-08-30

Does the plush handle come with it? And does plushing system come inside the tank?

Asked by: judymae
Yes, the handle comes with the toilet. No assembly required......the toilet is ready to mount right out of the box. The only thing you need to purchase is a wax or a non wax ring (which is what I used) and it works perfect.
Answered by: wdnkl
Date published: 2016-10-17

The assembled height must be incorrect on your website. What is it actually?

Asked by: Anne
The Kohler answer is incorrect...makes one wonder about Kohler's customer service. The correct overall height from floor to top of the tank is 25-5/16". The width of the top of the tank (across) is 17-7/8".
Answered by: wdnkl
Date published: 2016-09-08

why is this toilet not ADA

Asked by: Anonymous
Because some people (like me, and people who have small children) still want standard-height (lower) seats instead of the seats that are 2" higher. Most of the toilets available nowadays are ADA compliant (higher-height seat). It's good to know that standard-height models are still available.
Answered by: Saty13
Date published: 2016-11-06
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Customer Reviews

Archer 1-piece 1.28 GPF Single Flush Elongated Toilet in Thunder Grey is rated 4.4 out of 5 by 16.
Rated 2 out of 5 by from I like the seat automatic lowering feature that prevents it frm ever dropping. I like the flush w... I like the seat automatic lowering feature that prevents it frm ever dropping. I like the flush which is quick eficient and total. Style is OK. We have had two of them for one month. Bowl is imperfectly shaped inside---poor quality control, looks funny. Never seen such a misshaped toilet bowl before, but not a functional concern. Two needed bolts were missing in one of the packages. This was an important installation component missing from the factory box for one of the two toilets we purchased. These are not cheap units, but the quality control is poor. Definitely did not meet our expectations, except for the excellent flush effectiveness.
Date published: 2017-05-02
Rated 4 out of 5 by from One piece design. Easy to install. Kit should have included hold down/mounting bolts, but other t... One piece design. Easy to install. Kit should have included hold down/mounting bolts, but other than that, worked as expected
Date published: 2017-05-23
Rated 5 out of 5 by from Perfect for my small bathroom The ARCHER 1-PIECE 1.28 GPF SINGLE FLUSH ELONGATED TOILET IN WHITE is perfect in my small bathroom. It's one of the few Kohler's that are not super tall and it's a one piece! I also love the way it looks. The flushing mechanism is easy to get used to, just pull towards you and it flushes great, no problems! It's kind of pricey but worth it if you want a cute one piece. One thing, though, it's not bright white, it's almost off-white in color. This didn't bother me too much, but I thought it might be worth mentioning.
Date published: 2016-09-20
Rated 5 out of 5 by from Good value as to what is available We are quite happy with this Archer one piece toilet. This toilet is replacing the original builders installation. We needed a toilet that had an overall height of 26 1/2 inches or less and this one fit the bill. The installation was quite easy but I did need to enlist the help of a neighbor because of the weight. This being a one piece toilet it weighs in at 95 lbs. The toilet flushes well and the refill is very quiet compared to our other replacement a Toto. I would say the only drawback is that we would have preferred the comfort height seat. I had seen another review on this item not liking the fact that the flush handle is pulled forward but we see no problem at all with this.
Date published: 2016-08-30
Rated 5 out of 5 by from Nice toilet! One piece. Easy to assemble and install. Works great! Seat is comfortable, and the anti-slam feature is nice. This is the "standard" height, which to me is much more comfortable than the so-called "comfort" height. The best part is the Aqua Piston which really gets the stuff down. No more clogged toilet.
Date published: 2016-02-10
Rated 5 out of 5 by from great toilet! My only complaint is the flush handle. It is odd to pull it towards you to flush. I have been programmed for 38 years to push down and it trips me up everytime!
Date published: 2011-08-08
Rated 5 out of 5 by from Works Nice and Looks Great There aren't many lower profile toilets on the market. This one is really great looking compared to most toilets this height. It wasn't cheap but it matches the other two toilets we installed in our home and fits under the counter extension. I would recommend it.
Date published: 2016-06-22
Rated 4 out of 5 by from Meets expectations. Quality of product was fine and functions well. I wish that we would have had a choice on flush handles as we had to spend extra for a brushed nickle handle and waste the chrome one.
Date published: 2012-06-07
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