Name: Highline Arc® The Complete Solution® one-piece elongated toilet, 1.28 gpf
Brand: kohler
SKU: K-26812-0
Price: 410.92 USD
Availability: InStock
Rating: 4.5 (12 reviews)

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Meli A.

Purchased in February 2026, installed and the holding tank continues to leak.  I replaced the canister seal, still leaks.  Toilet is also way too high.  I'm done buying Kohler toilets, terrible fit for my home.  Getting Toto toilets from now on.

Holding tank canister seal leaks, too tall.

We got this toilet just in time for a remodel we were working on. The box came with everything needed and it didn't take long to put together at all. It does seem to be a little higher standing but it's only slightly noticeable. I am really happy with it!

All in one!

In need of a toilet for disabled husband.  Our son bought this one, and great for disabled people, very quiet and nice looking!

Quiet and comfortable

Received from Influenster.  It was easy to install. Is made of good quality and works well.  It sits up higher which is great for my elderly mom. Thank you Influenster.

Great product

This toilet was incredibly easy to install, and the sleek 1 piece design is a game changer, as we've never had one before, but the cleaning is a breeze!! I love that it came with the wax ring and most the hardware, and after we changed/upgraded our plumbing hoses size it was pretty smooth sailing on the install.

Extremely easy to unstall

It was a pretty easy install, though because it's single piece, I highly suggest using 2 people since it's so heavy. I did have to contact Kohler as when it arrived, the tank lid was shattered and there was a slight crack in the top of the bowl that I had to patch with an epoxy I bought. The bowl crack was cosmetic and the seat covers it up. I'm still waiting on the new tank cover to arrive as they did not give me an estimate of when to expect the replacement. The seat is a thinner plastic but seems nice enough and is soft close.

Simple toilet

We’ve owned our house for close to 10 years and every time we have to replace anything plumbing, we go with Kohler because of the reputation and the brand trust we have. 

The elongated Highline 1 piece toilet is a perfect addition to our en suite that we are currently renovating. The design of the toilet looks great with our transitional aesthetic. The flush handle is on the side for a sleeker look. The no slam lid and the plunging flush adds to the convenience of this toilet. The ample flush helps keep the toilet bowl cleaner for longer, as well.

My husband insisted on an enlongated seat for a new commode and since I am the main housekeeper having a one piece toilet for 
easy cleaning is an additional bonus for me. 

The chair height is perfect for an adult bathroom but my four year old has no problem getting up there.

Trusted Kohler quality with featured comfort and cleanliness

Paige S.

This highline arc one piece toilet is a significant upgrade from my previous toilet. First,  it is incredibly comfortable, and I love the height of the toilet much easier to get off of which is extremely important for my aging parents. Second,  it uses significantly less water to flush and actually flushes better than my older toilet.  Third, it's very stylish and sleek looking and I love the fact that the flushing handle is on the side not right in front.   I think it looks much better this way.  Installation was a breeze, and everything was included in including the wax ring, which made it very easy to install as I didn't need to get any additional parts.  Another wonderful feature is the soft close lid.  There will be no more slamming of the toilet lid at my house!  I'm amazed of how powerful the flush is because it is clearly a low flow tank, which is great for water savings, but it has a lot of flushing power as well due to the design of the Class 5 Canister flushing mechanism.  I am so glad that I upgraded to this toilet, I highly recommend it for style, water savings, and most of comfort!

Very sleek looking one piece toilet!

Kohler highline white elongated toliet was easy to install and put together. Kohler products are definitly made to higher standard than most brands.  The flush is smooth and the the elongated design makes the toliet longer than a standard toliet. The toliet is priced comparable to toliets in its class.

Quality product.

Kohlor products are one of the leading brands in bathroom products. We love this toilet, It has a comfortable height, well priced and worth the money. It looks very nice and modern. I am very glad we added this to our master bathroom.

Comfortable height

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The Complete Solution® one-piece elongated toilet, 1.28 gpf

Bring clean, simple design and dependable performance to your bathroom with the KOHLER Highline Arc The Complete Solution one-piece elongated toilet. This one-piece toilet integrates the tank and bowl into a seamless, easy-to-clean design, so you spend less time scrubbing crevices and more time enjoying your space. A water-efficient 1.28 gpf flush harnesses the Class Five® canister flushing technology for a strong, effective clean with every use, supporting water-conscious use compared to an old 3.5-gallon toilet. The Quiet-Close™ lid and seat prevent slamming, and Grip-Tight bumpers hold the seat firmly in place. As a complete solution, everything you need arrives together, including the bowl, tank, seat, wax ring, and hardware, so installation is refreshingly straightforward. It is the thoughtful, water-efficient upgrade your bathroom deserves.

Shop the entire Highline toilet collection with Comfort-Height seating, choice of round-front or elongated bowls, and single- or dual-flush options.

Highline Arc®The Complete Solution® one-piece elongated toilet, 1.28 gpf

Highline Arc®
The Complete Solution® one-piece elongated toilet, 1.28 gpf