Kohler Highline Toilet Review: Classic comfort height with left-hand trip lever

Among the various Kohler toilet models on offer, the Kohler Highline toilet is one of the most efficient. Sold at a very favorable price, the Kohler Highline toilet series has some amazing toilets with exceptional features. Additionally, the toilet is very easy to install and offers great comfort to its users. It can as well match with both modern and conventional bathroom designs. Is it worth to buy the Kohler Highline? Read this Kohler Highline toilet review to know the details!

Kohler is a famous brand in the lavatory field. They offer high-quality bath tubs, sinks, toilets, etc. Kohler toilets are one of the most durable on the market. Whether you’re looking for a toilet for a public restroom, your bathroom, office, or a luxury toilet for your mansion, Kohler has it all. To know more about the Kohler Highline toilets, read on…

Top 2 Kohler Highline Toilet Review 2018

These two highline toilets from kohler brand is very popular. And their price mostly depends on the GPF.

Kohler K-3493-0 Highline Classic Pressure Toilet

Are you tired with your current toilet because of its poor flushing performance? The Kohler K-3493-0 two-piece toilet is here to give you a new experience. This toilet features a pressure assisted flushing technology that is great in flushing large waste. The toilet uses 1.6 gallons of water per flush. So, you get to save at least 2, 000 gallons of water per year. On top of that, it has a left-hand chrome trip lever and a standard height, which makes it be ADA compliant. Therefore, it can be installed in public restrooms or even at home.

Technical Specifications of the Kohler K-3493-0 Highline Classic Pressure Toilet:


K-3493-0 Highline Classic Pressure

Water Consumption: 1.6 GPF
Pieces: Two-Piece
Material: Ceramic
Shape: Elongated
Handle/Lever Placement: Left
Toilet Dimensions: 38.2 x 25 x 23.7 inches
Warranty: One-year limited warranty
Price: Check Today’s Price On Amazon

The Kohler K-3493-0 Highline classic toilet is well-designed and will match with both contemporary and traditional toilets. This one is in white color but you can also get another color like black, but it’s quite expensive. Also, it has an elongated bowl design that offers comfort due to the extra sitting space. You can also install this device on your own as it has a standard 12-inch rough-in and comes with bolts ready to install. The only things that you will need are a toilet seat, wax ring, and the supply line, as they are not included in the purchase. Otherwise, this is an excellent toilet that will serve you for a very long while.


  • It uses a pressure-assisted flushing system
  • It is very comfortable as it has an elongated bowl design
  • The toilet is of a standard height and very easy to sit on or stand up
  • The trip lever is located on the left-hand side making be ADA compliant
  • It only uses 1.6 GPF, which enables you to save a lot of water every year
  • It is very easy to install as it comes with a 12-inch rough-in and bolts
  • The manufacturer offers a one-year limited warranty


  • There is no seat, supply line, or wax ring included in the purchase
  • It is not WaterSense certified and will not be accepted in some states like California

Kohler K-3658-0 Highline Class 5 Toilet

As sleek and compact as this toilet looks, the Kohler K-3658-0 elongated toilet is a great addition to any bathroom. The traditional white color can match with any bathroom décor, but you also have the option of choosing other colors like black, biscuit, etc. Just know that other colors are slightly costly than white. The toilet features one of the most powerful flushing systems which is the class five flushing technology. This technology offers great bulk waste flushing and leaves the bowl clean after every flush. So, cleaning is made easy.

You can install this toilet in any state as it has a standard 12-inch rough-in and uses only 1.28 gallons of water per flush. With such water usage, this toilet will enable you to save at least 16, 500 gallons of water per year. And if you live in states where they provide discounts for installing a WaterSense certified toilet, this will be advantageous for you. Cleaning is easy and you can do so twice a week as the flushing system does the work most of the time.

Technical Specifications of the Kohler K-3658-0 Highline Class 5 Toilet:


K-3658-0 Highline Class 5

Water Consumption: 1.28 GPF
Pieces: Two-Piece
Included Components: toilet
Shape: Circular
Certification: Watersense
Flush Type: Water Saving Toilets
Warranty: One-year limited warranty
Price: Check Today’s Price On Amazon

The canister flush valve offers smooth flushing actuation with consistent water usage, after every flush. Furthermore, the toilet is ADA compliant as it has the chrome trip lever located on the left-hand side and a standard toilet seat height. The elongated bowl design offers comfort as it is spacious enough. With these features, this is considered to be a high-efficiency toilet and you will be gladly using it. You will have a lower water bill but high-performance all the time.


  • This toilet is WaterSense certified as it only uses 1.28 gallons of water per flush
  • It has an elongated bowl which provides extra space for added comfort to different users
  • The toilet is of a standard height when the seat is included and easy to use
  • It features a chrome trip lever based on the left-hand of the toilet, making it be ADA compliant
  • It uses the powerful class five flushing technology that clears large wastes easily
  • The manufacturer provides a one-year limited warranty
  • Installation is made easy as it comes ready with bolts and a standard 12-inch rough-in


  • The toilet seat and supply line are not included in the purchase
  • The toilet is not very silent as it makes some noise during refilling the tank and when flushing

Bottom line
When buying a toilet, there are several things that a person should consider. For instance, the flushing capacity, height, bowl design, ease of installation, ease of cleaning, and durability. Looking at these factors will help you choose a toilet that will not only last long but as well offer great performance. However, after you have decided on the features, also select a color that compliments your bathroom décor. The units that we’ve discussed above are some of the best and you will not be disappointed in them. So, That’s it from this Kohler Highline toilet review post and Wish you all the best as you pick your next toilet!


Q. Can I install the Kohler Highline Toilet by myself?
Ans. Of course yes, the Kohler Highline toilet is just like any other standard toilet on the market with a 12-inch rough-in. The only challenge is that you will have to purchase a toilet seat and the supply line. But the rest is easy as you will have to simply follow the instructions in the user’s manual.

Q. What features will I get from acquiring the Kohler Highline Toilet?
Ans. This is an excellently designed toilet with outstanding features. The Kohler Highline design toilet offers elongated bowl design. It is also a two-piece toilet and has a powerful flushing system. The toilet has a chrome trip lever located on the left side of the toilet. You can choose either a toilet model with 1.28 GPF or 1.6 GPF. The toilet seat is of a standard height thus very comfortable.

Q. Which one is better – 1.6 GPF or 1.28 GPF Kohler Highline toilet?
Ans. If you live in places where they have strict water regulations, such as requiring all households to use a toilet with 1.28 GPF, then you are better off having such a toilet. This will help you save a lot of water and even get rebates in some municipalities. At the same time, you will be conserving the environment. So, the 1.28 GPF toilet is better as long as it is has a very efficient flushing system in place.

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