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Highline Classic Complete Solution 2-Piece 1.28 GPF Single Flush Round-Front Toilet in White, Seat Included

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  • Easy install with included toilet seat, wax ring, and hardware
  • Class 5 Flush exposes 90% less seal material (see video)
  • Comfort Height offers chair-height seating (about 2 in. taller)
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Product Overview

With its clean, simple design and efficient performance, this Highline Classic 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. This Complete Solution package includes everything necessary for installation.
  • 2-piece toilet
  • Round-front bowl offers an ideal solution for smaller baths and powder rooms
  • Comfort height feature offers chair-height seating that makes sitting down and standing up easier for most adults
  • 1.28 GPF
  • Standard left-hand polished chrome trip lever included
  • Complete solution toilets provide everything you need in one box, including bowl, tank, seat, wax ring, and floor hardware
  • Supply line not included
  • Combination consists of the K-4436 tank and the K-5393 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 virtually plug-free performance and rinsing power for a clean 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
  • Tips for selecting the ideal toilet at The Home Depot

  • Click here to learn more about Eco Options and Water Conservation

Additional Resources

From the Manufacturer

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Bowl Height without Seat (in.)16.5Flush Valve Size (in.)3
Product Depth (in.)29.5 inProduct Height (in.)30.375 in
Product Width (in.)19.625 in


Bowl HeightChair HeightBowl/Seat ShapeRound
Color FamilyWhiteColor/FinishWhite
Commercial / ResidentialResidentialFeaturesNo Additional Features
Flushing TechnologyGravity FedFlushing TypeSingle Flush
Gallons Per Flush1.28Handle LocationLeft
IncludedComplete Kit,Handle,Hardware,SeatMaP Performance Rating1000
MaterialVitreous ChinaMount LocationFloor Mount
Product Weight (lb.)94 lbReturnable90-Day
Rough In Size12 inch Rough InSeat Front TypeNo Seat Included
StyleModernToilet TypeTwo-Piece
Trapway Diameter (in.)2.125Trip Lever LocationLeft Side

Warranty / Certifications

Certifications and ListingsCSA CertifiedManufacturer WarrantyOne Year Limited Warranty

Questions & Answers

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Customer Reviews

  • 4.5
    out of 2,692 reviews
  • 83%recommend this product
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Showing 1-10 of 2,692 reviews
So far good!
So far i really like it. Works great no issues yet!
  • Verified Purchase
  • Recommended
1 found this review helpful
Kohler Highline Arc (Round) I used plastic shims
It came with a wax but I bought anoher to prevent any leakages even though the toilet was installed on the first floor. Also, I used fluidmaster setfast bolts to hold toilet. For the tank, I use a screwdriver down which made things much easier to bolt.
    • Recommended
    5 found this review helpful
    We purchased the Highline Arc style for a bathroom remodel....
    We purchased the Highline Arc style for a bathroom remodel. We really like how it flushes so efficiently and have not had any clogging problems in over 9 months. The streamline design looks great in smaller spaces even with the elongated bowl and chair height. The soft close seat was a plus. We just put another one in our powder room. Wish I had bought a three pack to replac our third toilet and benefit from the savings. Good value at $179.
    • Verified Purchase
    8 found this review helpful
    Simple, And Easy To Install
    My wife and I did quite a bit of research for the highest rated for the best price, we finally decided on this one. It was much easier to install than we first thought, works great with good quality. We will be purchasing a second one for our quest bathroom. Oh, only one issue, didn't like the wax ring that came with it, so we purchased the new no wax ring and so far, so good. And one more thing, we are redecorating our entire home, so next will be the vanity and sinks.
      • Recommended
      12 found this review helpful
      Great buy
      Great toilet that flushes away everything every time. It is quite and uses a lot less water then our last one.
      • Verified Purchase
      • Recommended
      8 found this review helpful
      Perfect for my style!...
      Perfect for my style!
        3 found this review helpful
        Beautiful, but disappointing
        I absolutely love the look of the toilet, but the flushing mechanism in the tank is horrible. My old toilet flushed completely with a quick push of the handle. In order to get a complete flush with this toilet, the flush handle has to be physically held down several seconds. If this is not done, only some water enters bowl and swirls around without flushing down the drain. It also takes longer to refill the tank. I checked Kohler's instructions for cleaning refill part, but my unit would not "push down" to release the part that might need to be rinsed. I am extremely unhappy with the flush and refill mechanism. Old fashioned "flapper" works much better.
        • Verified Purchase
        35 found this review helpful
        Missing rubber piece on toilet seat/board. No QC?
        Purchased 3 of these for our remodeling, so far the first one is missing of the 2 plastic pieces that attached to the board (see picture). I searched everywhere inside the box and can't find it. Hopefully the next 2 are going to be better.
          11 found this review helpful
          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
          • Verified Purchase
          2 found this review helpful
          Being that my toilets were both the standard height water guzzling toilets of old, anything halfw...
          Being that my toilets were both the standard height water guzzling toilets of old, anything halfway decent would be an improvement but so far everything is going well. My plumber did the install on both and he had no complaints. I initially wanted a dual flush for my bathroom but my plumber pointed out this toilet was just as good for water conservation. After that I ordered another for my master bath and I am very pleased with both plus they look so darn good. It has a very quick flush which is strange at first, still a little odd to me, but I keep reminding myself of how old my original units were. With my old toilets you had to grab the handle but with these the gentlest push of the handle does the job. My mother was so impressed with the powerful flush and the quick water refill that I’m thinking of upgrading the toilets at her house as well. As for the seat, I don’t like the light weight plastic but I’m guessing that’s needed for the slow close feature which by the way is a very very slow. I may end up switching the seat out but I purchased this toilet for the size, both of my bathrooms are very small, height, and low water consumption, not the seat. Granted I’ve only had these toilets for a few weeks now but I’m not anticipating any issues. Great toilet with a great price.
          • Verified Purchase
          • Recommended
          27 found this review helpful
          Showing 1-10 of 2,692 reviews