KOHLER Highline Complete Solution 2-piece Dual Flush Elongated Toilet in White-K-45979-0 - The Home Depot
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Model # K-45979-0

Internet # 203915126

Store SKU # 1000002117

Highline Complete Solution 2-piece Dual Flush Elongated Toilet in White

KOHLER Highline Complete Solution 2-piece Dual Flush Elongated Toilet in White

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

Was   $218.00
$198.00 / each

Save $20.00 (9%)

  • Available exclusively at The Home Depot


Model # K-45979-0

Internet # 203915126

Store SKU # 1000002117

This Highline Classic dual-flush toilet offers the choice of 1.1 or 1.6 gal. per flush, and a unique two-tone nested trip lever mounted on the side rather than on the top of the tank. The high-efficiency 1.1-gal. flush reduces water use by more than 30 percent over the 1.6-gal. mode, which adds up to potential water savings of more than 4,000 gal. per toilet, per year. This Highline Classic Complete Solution toilet comes with all the necessary installation hardware for added convenience.

  • 2-piece toilet
  • 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
  • Left-hand nested trip lever offers a choice of 1.1 or 1.6 gal. per flush
  • 2-1/8 in. glazed trap-way
  • Complete solution toilets provide everything you need in one box, including bowl, tank, seat, wax ring and floor hardware
  • Supply line not included
  • Available exclusively at The Home Depot
  • Dual-flush technology allows you to choose between a full or partial-flush
  • Standard 12 in. rough-in
  • 3-bolt installation
  • WaterSense toilets meet strict EPA flushing guidelines, including using at least 20 percent less water than 1.6-gal. toilets
  • Eligible for consumer rebates in some municipalities

Info & Guides

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Bowl Height (in.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Bowl Height 
Comfort Height 
Bowl Shape 
Color Family 
Commercial / Residential 
Flushing Mechanism 
Gravity Flush 
Flushing Technology 
Gravity Fed 
Flushing Type 
Dual Flush 
Gallons Per Flush 
MaP Performance Rating 
Vitreous China 
Mount Location 
Floor Mount 
Product Weight (lb.) 
104 lb 
Rough In Size 
Toilet Features 
Complete Kit 
Toilet Included Components 
Warranty / Certifications
Certifications and Listings 
No Certifications or Listings 
Manufacturer Warranty 
One-year limited warranty 


Rated 4.0 out of 5 by 48 reviewers.
Rated 5.0 out of 5.0 by Nice Toilet After converting my two toilets to dual flush toilets, and being very disappointed I knew I had to do something different. On a recent trip to My In-Laws my wife saw the toilet that her Mother had installed during the remodel of the bathroom. She really liked the toilet so we found out the name and model and started looking for the toilet on the Home Depot web site for Home Depot stores that stocked it near us. The nearest store that stocked the toilet was 2 hours away. Well, what the wife want, the wife gets. The install was pretty straight forward, just like any other toilet. It looks great and the dual flush has worked flawlessly. The only thing I didn't realize I would need is a longer supply line because the toilet is a comfort height and the one I replaced was not. Next month I will be buying another one to replace my second toilet. May 19, 2015
Rated 4.0 out of 5.0 by Updating earlier poor review I had in an earlier review said that this toilet worked badly and I couldn't get good support from Kohler. (I gave it 1 star) I found out that the problem with my toilet was the installer. He had left the adjustment to allow for inadequate water flow hence poor performance. I hired a plumber to see what he could do. Kohler thought that maybe the vent was bad or there was a clog on the sewer. The plumber had experience with this toilet and saw right away that there wasn't enough water flow. I've had no further problems since. Knock on wood. Home Depot reimbursed my plumber charge since their installation was not up to snuff. Their "plumber" only understood how to hook it up but not to adjust it. A bit of advice: The Korky Beehive Max plunger seems to seal to the bottom of the bowl well. If you need to plunge try this. Normal plungers can't seal to the key hole shaped outlet. BE SURE TO GET THE LITERATURE THAT COMES WITH THE TOILET. ADJUSTMENT AND PARTS ID ARE THERE. March 4, 2015
Rated 1.0 out of 5.0 by What a disappointment! BEWARE!!! This toilet clogs regularly when I have a bowel movement. It's gotten to the point where I have to count on manual clearing and am happy when not needed. Regular plungers don't seal so a snake is necessary which is messing, smelly and can damage the toilet. Kohler has not been very helpful except to say that they are sorry that it clogs. I bought this less than a month ago and it does NOT work as advertised. I cannot return it to Home Depot. They're mine now, I'm sorry to say. The MaP rating of 1000 is ridiculous since it does not meet the standards this rating is supposed to represent. STAY AWAY FROM THIS AND SIMILAR PRODUCTS FROM KOHLER. February 21, 2015
Rated 5.0 out of 5.0 by Great purchase Did my homework on the dual flush toilets and ended up with the kohler. I have found that the number one flush is adequate for most applications however will use the number two flush for water volume to avoid any clogging. All toilets install easily as there are only two bolts holding them down. Would recommend that you get a couple of different size supply lines as they can be returned if not used, also a second set of hands is always helpful as toilets are a bit on the heavy side. It looks great and works great so far and I am pleased with my new throne. February 14, 2015
Rated 5.0 out of 5.0 by Kohler Highline Classic I must admit I was skeptical of getting one because I have had problems installing toilets in the past. LImited knowledge of doing it. I was having a contractor do other work that day and I had it already at home but not installed. He said he would do it for me for a GOOD price. I said YES! At my age (over 70) my back is NOT as good as before. I observed him doing the installation and it went MUCH smoother than ever expected. Even he said that, I'd say not including draining the water from the old one and removing it, maybe under an hour for everything, no leaks and no adjustments needed either. So far so good. August 1, 2014
Rated 5.0 out of 5.0 by Fabulous Flush Easy to install and everything works as advertised. April 8, 2015
Rated 4.0 out of 5.0 by good purchase and experience received one week ago, plumber had no problem installing. I bought for comfort height of toilets, I am pleased with this product thus far the two toilets both work well January 27, 2015
Rated 4.0 out of 5.0 by Comfortable Seat and Easy to Install This toilet has easy to follow instructions right on the outside of the box, and includes everything for installation except for the basic tools and water supply line which the homeowner will need to provide. The elongated design and height is much better than the old toilet for comfort. The dual flush option provides two different volumes of water with each handle, the green handle for a light flush and the silver for a heavier flush. I suppose this toilet will save on water over the long haul. My only complaint about this toilet is that the bowl doesn't fill with as much water as a regular older model, requiring the user to hold the handle down for a couple of seconds at times for more water. Sometimes dabs of waste will stick to the inside of the bowl, requiring a brush cleaning. April 29, 2015
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