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Internet # 320316280

Model # K-31620-0

Cimarron 12 in. Rough In 2-Piece 1.6 GFP Single Flush Elongated Chair Height Toilet in White, Seat Not Included

$410.36
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  • Made of vitreous, ADA comfort height 1.6 GPF 360 swirl flush
  • CleanCoat surface treatment prevents stains for easy cleaning
  • Seat and supply line sold separately
  • View More Details

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Return this item within 90 days of purchase.

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Product Details

About This Product

The Cimarron Comfort Height toilet has become an enduring symbol of power and timeless beauty. Trusted for years by professionals and homeowners, Cimarron features KOHLER's most complete flush ever, Revolution 360° swirl flush powered by the AquaPiston flush valve. Installation saves you time and money, too, with KOHLER's patent-pending two-bolt tank-to-bowl omni-directional leveling system.

Highlights

  • 2-piece design
  • Elongated bowl offers added room and comfort
  • Comfort height feature offers chair-height seating that makes sitting down and standing up easier for most adults
  • 1.6 GPF (6.0 LPF)
  • Left-hand polished chrome trip lever
  • 2-1/8 in. (54 mm.) fully glazed trapway
  • Revolution 360° flushing technology generates a forceful swirling motion to keep the bowl clean longer
  • Sanitary guard where bowl and tank meet for ease of cleaning
  • Coordinates with other products in the cimarron collection
  • Precision-engineered patented tank, bowl, and trap way create strong siphon during flushing
  • Aqua piston canister optimizes the flow out of the tank, harnessing gravity and the natural powerful reducing cascade of water to increase the power and effectiveness of the flush
  • Easy-to-flush canister design requires less force to actuate than a 3 in. (76 mm) flapper, and has 90% less exposed seal material which resists conditions that cause wear, tear, shrinkage and swelling
  • Standard 12 in. (305 mm) rough-in
  • Return Policy

Product Information

Internet # 320316280

Model # K-31620-0

Specifications

Dimensions: H 31.25 in, W 18.625 in, D 28.8125 in

Dimensions

Product Depth (in.)

28.8125 in

Product Height (in.)

31.25 in

Product Width (in.)

18.625 in

Details

Bowl Height

Chair Height

Bowl/Seat Shape

Elongated

Color Family

White

Color/Finish

White

Commercial / Residential

Residential

Features

No Additional Features

Flushing Technology

Flapper/Piston

Flushing Type

Single Flush

Gallons Per Flush

Single Flush: 1.6

Handle Location

Left

Included

Handle

Material

Vitreous China

Returnable

90-Day

Rough In Size

12 inch Rough In

Toilet Type

Two-Piece

Trip Lever Location

Left Front

Warranty / Certifications

Certifications and Listings

ADA Compliant, ANSI Certified, ASME Certified, CSA Certified

Manufacturer Warranty

One Year Limited Warranty

Questions & Answers

What is the recommended toilet seat for Cimarron 1.6 gpf #K 31620-0
ByJul 9, 2026
1 Answer | 
Answer This Question

Wgm3, my name is Jessica with Kohler Customer Service. I am happy to assist with your inquiry. There is not a required seat for K-31620-0; any standard Kohler elongated toilet seat would be compatible. The following link is to all of the current options: https://tinyurl.com/362mcyn5. Thank you for choosing Kohler.

By|Jul 13, 2026


    Hello. What is the difference between the Kohler K-31641and Kohler K-31668 Toilet? The K-31641 seems to be more expensive but when I look over the technical information I cannot find the differences. Thanks
    ByJun 13, 2026
    1 Answer | 
    Answer This Question

    Mike, this is Sarah with Kohler Customer Service. I am glad to address your question. The K-31668 is a Complete Solution toilet which includes the toilet seat and is sold exclusively at Home Depot and Lowes. The K-31641 Cimarron toilet is not a Complete Solution and therefore does not include the toilet seat. Thank you for choosing Kohler.

    By|Jun 14, 2026


      WHAT DOES IT WEIGH
      ByMar 7, 2026
      1 Answer | 
      Answer This Question

      ROB1, my name is Jessica with Kohler Customer Service. I am happy to assist with your inquiry. The tank of K-31621-0 weighs 35.01 pounds and the bowl weighs 50 pounds. Thank you for choosing Kohler.

      By|Mar 10, 2026


        What soft close seat goes with this model ?
        ByMar 5, 2026
        1 Answer | 
        Answer This Question

        Hi Wade, my name is Meli with Kohler Co. I am happy to assist with your question. The recommended toilet seat for the Cimmaron K-31620 is the Cachet K-4636-RL. Thank you for choosing Kohler.

        By|Mar 6, 2026


          Does this 1.6 gpf version (K-31620-0) have a stronger flush than the 1.28 gpf version (K-31620-0)? Thanks!
          ByMar 2, 2026
          1 Answer | 
          Answer This Question

          stunman74, my name is Jessica with Kohler Customer Service. I am happy to assist with your inquiry. K-31620-0 is a 1.6 gpf toilet. The strength of the flush would be the same as on a 1.28 gpf only that it uses more water. Thank you for choosing Kohler.

          By|Mar 3, 2026


            Can you tell me the difference between Cimarron toilet # 31648-0 and model 31621-0
            ByFeb 13, 2026
            1 Answer | 
            Answer This Question

            Hello DanL, my name is Paige with Kohler Customer Service. I am happy to help. With the K-31648-0, the seat and supply line are included whereas with the K-31621 they are sold separately. The footprints of the bowls are slightly different as well. Thank you for choosing Kohler.

            By|Feb 14, 2026


              Can you tell me how long the entire base of the toilet is? I need to cover up a spot on my tile that the other toilet left. I don't want to know how far the bowl sticks out, just the footprint of the base.
              ByFeb 9, 2026
              1 Answer | 
              Answer This Question

              Hello ARich, this is Lisa with Kohler Co. I am happy to assist with your question. The footprint of the bowl is 23.875". From the centerline of the drain hole back it is 8.25". From the centerline of the drain hole forward, it will be 15.625". Thank you for choosing Kohler.

              By|Feb 10, 2026


                What is the difference between Cimarron 12 in. Rough In 2-Piece 1.28 GFP Single Flush Elongated Toilet in White with Soft Close Seat Model K-31648, and the identical Model K-31621 without seat but $69 more expensive?
                ByJan 21, 2026
                1 Answer | 
                Answer This Question

                Hello PhilipT, this is Quinn with Kohler Co. I am happy to address your question. Yes, toilets K-31648 and K-31621 are very similar. The difference is that the K-31648 is a complete solution toilet and that just means it comes with a seat, wax ring and the hardware. Thank you for choosing Kohler.

                By|Jan 23, 2026


                  Viewing 1-8 of 36

                  Customer Reviews

                  4 out of 5

                  • 4 out of 177 reviews
                  • 77% recommend this product
                  Filter by:
                  Showing 1-10 of 177 reviews
                  Seat does not fit
                  Ordered Kohler Cimmaron two piece assembly K-31260-0 which comes in two parts. The tank is PN K-31620-0, The chair is K-31588-0. Seat must be ordered separately. Ordered K-22203-0 Elongated Soft Close Toilet Seat, does not fit.
                  by
                  Response from Kohler Product ExpertJun 8, 2026
                  Hello, this is Autumn with Kohler Customer Care. I am sorry to see the elongated toilet seat doesn't fit properly on the Cimarron elongated toilet. We would like to connect with you to learn more about your experience and find a way to help! Please email our Customer Service team directly at KohlerCustServ@kohler.com for additional assistance. We are here and happy to help! –Autumn F. Kohler Customer Care
                    so I bought this for powerful flush and must say it excels in that category. On the flip side install was painful and i had the same issues getting the tank to toilet to not leak as many others but after several tries I got it. This is well worth the upgrade over slightly cheaper models in my opinion.
                    by
                    It arrived broken. Hopefully it will be replaced without expense to me.
                    by
                    Response from Kohler Product ExpertDec 2, 2025
                    Hi JOHN, this is Lisa with Kohler Co. I am sorry to read that you received a product that was broken. This is not something you should anticipate when purchasing a new Kohler product. Please feel free to contact us at KohlerCustServ@Kohler.com for additional assistance. We are glad to help! Sincerely, Lisa A., Kohler Customer Service.
                    • Verified Purchase
                    Not too pleased
                    We bought two Cimarron 1.28 gpf toilets based upon our previous experience with the identical toilets purchased several years ago. Our experience this time around is not so good. Neither gives a complete flush to empty/clean the bowel and one lid wobbles atop the tank. The seats’ closing mechanism is of a different design that makes periodic cleaning more difficult. All and all, not particularly happy.
                    by
                    Response from Kohler Product ExpertJun 10, 2025
                    Hi BandB, this is Meli with Kohler Co. I am sorry your Cimarron toilet is not flushing well. This is unusual for this toilet as it has a top-rated flush valve assembly. There may be an issue with the settings in the tank, the waste tube, or the venting. Please review the following settings in your tank and correct if necessary. The trip lever should be taut; remove excess links of chain until there is very little play in the chain when the toilet is at rest. Check that the water level is at the water line mark on the canister. The refill hose must be inserted into the top of the canister flush valve and pushed in as far as it will go. If we may assist with your installation further, please email our customer care team at KohlerCustServ@Kohler.com. We are here to help. Sincerely, Meli A., Kohler Customer Service
                      1 found this review helpful
                      Bad fill / float valve.
                      Purchased June 2024 for a home remodel. Toilet has been overfilling unnoticed since. Water has been filling up to the flusher handle and leaking every time the toilet was flushed. Water level has been set to lowest level and every time the toilet is flushed the water overfills and leaks from the flusher handle. Caused damage to drywall, trim and hardwood floors. Called home depot about the issue and they gave me the run around for 30 minutes before giving me a false phone number to call.
                      by
                      Response from Kohler Product ExpertJun 2, 2025
                      Hello Jeff, this is Lisa with Kohler Co. I am sorry to read of the concerns with your toilet and its fill valve. It sounds like there is dirt / debris caught in the fill valve, causing it to overfill. We would like to connect with you to further discuss your model. Please feel free to contact us at KohlerCustServ@Kohler.com. We are glad to help! Sincerely, Lisa A., Kohler Customer Service.
                        4 found this review helpful
                        Great toilet
                        Height is good. Generally has a clean appearance. Flushes nice and quick. Cleans easily. Installed 3 and a vanity, took the plumber & helper a good 5-6 hours to complete the project.
                        by
                          • Recommended
                          Beautiful toilet!
                          This toilet is pearl grey. It looks fantastic in my new bathroom. Make sure you order the seat- not included. Love it!!
                          by
                          • Verified Purchase
                          • Recommended
                          This customer chose to rate the product and not provide text.
                          by
                          Response from Kohler Product ExpertJul 31, 2024
                          Ralph, this is Jessica with Kohler Co. I'm sorry to see you aren't completely satisfied with your Kohler product. We would like to connect with you to learn more about your experience and find out how we can help. Please email our Customer Service team directly at KohlerCustServ@kohler.com. We are here and happy to help! –Jessica P. Kohler Customer Service.
                          • Verified Purchase
                          2 found this review helpful
                          Leaks, Destroyed New Floor
                          We had two different plumbers and three total attempts to install this toilet. It leaked all three times, and it destroyed our brand new flooring.
                          by
                          Response from Kohler Product ExpertMay 21, 2024
                          Ren2024, my name is Jessica with Kohler Customer Service. I am sorry to hear your Cimarron toilets leaked. As the manufacturer, we are very interested in supplying our customers with a quality product that delivers beyond expectations. I am sorry this was not your experience. We would like to hear more about your experience with this product. Please contact our Customer Service team at KohlerCustServ@kohler.com. We look forward to hearing from you soon. - Jessica P. Kohler Customer Service.
                            4 found this review helpful
                            Fits Perfectly in the Space!
                            [Employee of kohler] So happy to have this new toilet. It fits the space perfectly, much easier for our kids to use than the previous toilet, and I find it already easier to maintain.
                            by
                            • Verified Purchase
                            • Recommended
                            Showing 1-10 of 177 reviews