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Internet # 312838678

Model # K-31674-0

Store SKU # 1005261406

Top Rated

Gleam 12 in. Rough In 2-Piece 1.28 GFP Single Flush Elongated Chair Height Toilet in White with Soft Close Seat

$279.00
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  • Made of vitreous, ADA comfort height 1.28 GPF 360 canister flush
  • Skirted trapway makes cleaning easy
  • Soft close toilet seat, wax ring, and hardware included
  • View More Details

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Product Details

About This Product

This WaterSense-labeled high-efficiency toilet delivers water conservation and easy installation in a sleek, skirted design. The Gleam two-piece skirted toilet utilizes Kohler's patented new ReadyLock installation system for easier, more intuitive installation. The skirted trapway installs to the floor flange and attaches to the toilet, eliminating the need to drill holes for a standard 12" rough-in while still offering the same secure installation as non-skirted toilets.

Highlights

  • Two-piece toilet
  • 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
  • 1.28 GPF (4.8 lpf)
  • Includes polished chrome left-hand trip lever
  • 2-1/8 in. (54 mm.) fully-glazed trapway
  • Fully skirted trapway
  • Quiet-Close lid and seat prevents slamming
  • Complete solution toilets provide everything you need in one box, including bowl, tank, slow-close seat, wax ring, and floor hardware
  • 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
  • Flush valve's 3:2 ratio harnesses the natural force of gravityand optimizes flush performance
  • Durable canister design has 90% less exposed seal material than a 3 in. flapper for leak-free performance
  • Light-touch canister flush requires a lower actuation force than a flapper
  • Standard 12 in. (305 mm) rough-in
  • WaterSense
  • Click here to shop for more Kohler products
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Product Information

Internet # 312838678

Model # K-31674-0

Store SKU # 1005261406

Specifications

Dimensions: H 31 in, W 18.5 in, D 29.1875 in

Dimensions

Product Depth (in.)

29.1875 in

Product Height (in.)

31 in

Product Width (in.)

18.5 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

Gravity Fed

Flushing Type

Single Flush

Gallons Per Flush

Single Flush: 1.28

Handle Location

Left

Included

Complete Kit

Material

Vitreous China

Returnable

90-Day

Rough In Size

12 inch Rough In

Toilet Type

Two-Piece

Trapway Diameter (in.)

2.125 in.

Trip Lever Location

Left Front

Warranty / Certifications

Certifications and Listings

ADA Compliant, ANSI Certified, ASME Certified, CSA Certified, EPA Approved

Manufacturer Warranty

Ten Year Limited Warranty

Questions & Answers

How far out from the wall is the end of the seat?
ByJul 14, 2026
1 Answer | 
Answer This Question

MBill, my name is Jessica with Kohler Customer Service. I am happy to assist with your inquiry. The overall length of K-31674 measures 29-1/2". The following link is to the specification sheet showing this on page 2 as well: https://tinyurl.com/3futp83j. Thank you for choosing Kohler.

By|Jul 14, 2026


    What is the number of inches to toilet sticks out into the room?
    ByJul 13, 2026
    1 Answer | 
    Answer This Question

    Hi Kath, this is Lisa with Kohler Co. I am glad to answer your question. The measurement from the back of the toilet tank to the front of the toilet bowl is 29-1/2". This does not include the 5/16" of spacing behind the toilet tank, if your rough-in is exactly 12". Here is a specification sheet with the information - https://tinyurl.com/4vdcfvyx. Thank you for choosing Kohler.

    By|Jul 14, 2026


      What is weight of tiulet
      ByJul 12, 2026
      1 Answer | 
      Answer This Question

      Hi Gleam, this is Sarah with Kohler Customer Service. I am glad to address your question. This Gleam toilet weighs 105.5 pounds. Thank you for choosing Kohler.

      By|Jul 13, 2026

        (1)

        My rough in measurement is exactly 11 1/8 inches from wall to center of floor bolts. Will I be able to use the 12 inch model?
        ByJul 10, 2026
        1 Answer | 
        Answer This Question

        Jerry, this is Paige with Kohler Customer Service. I am happy to help. If your rough in is less than 12", you cannot install a toilet with a 12" rough. The next size down would be 10". Thank you for choosing Kohler.

        By|Jul 10, 2026


          Are there any compatible toilet handles in black finish?
          ByJul 9, 2026
          1 Answer | 
          Answer This Question

          Hi Kylie, this is Autumn with Kohler Co. I am happy to assist with your question. At this time, we do not offer a replacement trip lever in the Matte black finish. The only compatible part is the one that was included with the toilet. Thank you for choosing Kohler.

          By|Jul 9, 2026


            What are the cut outs on the tank for
            ByJul 5, 2026
            1 Answer | 
            Answer This Question

            Ruth, this is Paige with Kohler Customer Service. I am happy to help. Some toilet tanks may have a hole near the top of the tank, this is an intentional part of the tank design which provides ventilation to prevent condensation. Thank you for choosing Kohler.

            By|Jul 6, 2026


              Does the tank lid just sit on top or does it sit in a grove
              ByJul 5, 2026
              1 Answer | 
              Answer This Question

              Ruth, this is Paige with Kohler Customer Service. I am happy to help. The tank lid sits on top of the tank. Thank you for choosing Kohler.

              By|Jul 6, 2026


                This toilet did not bring caps to cover the black circles. I went back to Home Depot and they opened another box which did not have the caps as well. Does this toilet bring caps to cover the black circles? See photo
                ByJul 2, 2026
                1 Answer | 
                Answer This Question

                Hello Flores, this is Sarah with Kohler Customer Service. I am sorry to hear your toilet arrived missing the bolt caps. We would love to connect with you directly to provide this part to you. Please call our team at 1-800-4KOHLER for further assistance. Thank you for choosing Kohler.

                By|Jul 7, 2026


                  Viewing 1-8 of 642

                  Customer Reviews

                  4.3 out of 5

                  • 4.3 out of 2,301 reviews
                  • 62% recommend this product
                  Filter by:
                  Showing 1-10 of 2,301 reviews
                  Toilet fits perfect in the small place. It has very clean and nice looks. easy to clean. However, we have to flush twice. So flushing is alright.
                  by
                  1 found this review helpful
                  The toilet is fine and seems to work well, but we bought it from Home Depot, had it delivered and when the plumber came to install it, there was a very small crack on the tank. We had to uninstall the toilet, get Home Depot to deliver another one (next day), survive without a toilet for a night, then pay for a second trip charge and another hour to install the second toilet. Very frustrating and we spent an extra $300. Thanks, Kohler!
                  by
                  Response from Kohler Product ExpertApr 16, 2026
                  Hello HomeDepotCustomer, this is Paige with Kohler Co. We are pleased to hear that you are enjoying your Gleam toilet. If there is any way we can help improve your experience, please let us know! We can be reached at KohlerCustomServ@kohler.com. Thank you for choosing Kohler. Kindly, Paige S. -Kohler Customer Service
                  • Verified Purchase
                  2 found this review helpful
                  Excellent Toilet bowl
                  I’ve been using a Kohler toilet for a while now, and overall, I’m very impressed with its quality and performance. It’s a great choice for anyone looking for both style and functionality.
                  by
                    • Recommended
                    Disappointing Build Quality – Tank Wobble Issue
                    I had high expectations for the Kohler Gleam toilet, but unfortunately this one fell short in a pretty important way. The main issue is where the tank connects to the bowl. Even after professional installation, the tank has noticeable side-to-side wobble. My plumber tightened the bolts as much as safely possible—right up to the point where going further risks cracking the ceramic—and the movement is still there. This isn’t an installation issue; it’s a fit/quality issue. For comparison, I have American Standard toilets in the same home, and those tanks sit rock solid with zero movement. The difference in stability is immediately noticeable. Flush performance on the Kohler is acceptable, but nothing exceptional—and certainly not enough to make up for the poor tank-to-bowl connection. At this price point, I expected much better precision and overall build quality. Pros: Clean, modern look Comfortable chair height Soft-close seat is nice Cons: Tank wobbles even when properly tightened Fit between tank and bowl feels imprecise Overall quality doesn’t match expectations for Kohler Bottom line: I really wanted to like this toilet, but the constant tank movement makes it feel cheap and poorly engineered. Given my experience, I would not purchase this model again and would stick with brands that deliver a more solid, stable build.
                    by
                    Response from Kohler Product ExpertMar 25, 2026
                    Hi Rene B, this is Quinn with Kohler Co. I am sorry to read your review of this toilet. We here at Kohler strive to make quality products that are durable and can last the test of time. We would like to hear more about this situation so I ask that your reach out to us directly at KohlerCustServ@kohler.com so we can help find a solution. Quinn Kohler Customer Care.
                      3 found this review helpful
                      The KOHLER Gleam is an excellent addition to our bathroom. It has a very sleek, modern look and the chair height makes it very comfortable to use every day, since we bought it about two month ago. The skirted design is a huge plus because it is so much easier to clean than traditional toilets. Highly recommend this model!
                      by
                      We replaced all 3 toilets in our house. Installation was fairly simple. We did have a big hiccup. Two of the 3 toilets arrive with damaged tanks. We had to purchase 2 replacement toilets and received our refund for the damaged units after they were picked up and returned to the warehouse.
                      by
                      1 found this review helpful
                      Product issue
                      I purchased this toilet three times, and only one arrived in proper condition. • First purchase: the tank arrived cracked and unusable. • Second purchase: the tank was not cracked, but the finish and edges were visibly flawed, with poor workmanship. • Third purchase: finally arrived in acceptable condition. The design and dimensions are fine, but the quality control is inconsistent. Discovering these issues before installation caused delays and extra hassle with returns. I strongly recommend inspecting the tank carefully for cracks or defects before installing.
                      by
                      Response from Kohler Product ExpertJan 13, 2026
                      Hello Yin, my name is Meli with Kohler Co. Thank you for sharing your experience with us. I am truly sorry to hear about the challenges you faced with multiple deliveries and the inconvenience caused by delays and returns. This is not the level of quality control we strive for, and we appreciate you bringing this to our attention. I have documented this model number for our team to review the shipping and handling processes. If we can assist with your installation or toilet further, please email our customer care team at KohlerCustServ@Kohler.com. We are here to help. Sincerely, Meli A., Kohler Customer Service
                        4 found this review helpful
                        Nice Looking Toilet!
                        Haven’t used it yet but looks nice and plumber said no problem installing.
                        by
                          2 found this review helpful
                          Need quality control to back the brand
                          I'm hopeful that the Kohler brand reputation and predominantly positive reviews here bode well for my experience over time but this was not the best start to my relationship with this toilet. The fill valve was only loosely attached to the tank, which I didn't pay much attention to until I was about to connect the supply line and call it a day, only to realize that the plastic nut holding the fill valve to the tank had been wound on at a bad angle, cross-threading and wrecking the thread of both and ultimately preventing the fill valve from being a half inch from being secured and sealed to the tank. A sizeable plastic molding stem on one corner of the nut that shouldn't be there is likely the culprit in a machine failing to wind this on at the correct angle and ultimately destroying both sides of the connection, but this should have been a very easy human quality control catch given the fill valve was obviously very loose. I used parts from a very similar Fluidmaster fill valve kit that I happened to have on hand to replace the stem and nut, but replacing a toilet is not the kind of task where you want to depend on luck and creative problem solving to get back to an operational state. On the positive side the ability to navigate a wax seal without fifty to a hundred pounds of weight clouding finer judgment and motor control is a significant step forward - so full points for breaking through an innovation barrier here. Areas for incremental improvement: I found the process of dropping the toilet bowl on the right spot to be entirely blind, requiring multiple takes and leading to an overall lack of confidence. The graphical instructions are to line the toilet up to the side nut assemblies, but it's not possible to see the side holes from the lifter's position, plus the main tank outlet connection at the back does not have confidence building drop-in feedback. My suggestion here would be to sticker the outsides of the bowl with crosshair lines, so it's easier to understand what's going on underneath that an installer needs to care about.
                          by
                          Response from KOHLER Customer ServiceDec 23, 2025
                          davidj, my name is Jessica with Kohler Customer Service. I am sorry to hear you are not completely satisfied with the Gleam toilet and the fill valve was received cross threaded. We appreciate you providing feedback regarding your product. As a valued customer, we want to ensure that the product you receive is what was expected. We would like to connect with you to provide a warranty replacement fill valve. Please contact our Customer Service team at KohlerCustServ@kohler.com. We look forward to helping you soon. - Jessica P. Kohler Customer Service.
                            Sleek design and powerful flush. The chair height is very comfortable and it’s super easy to clean.
                            by
                            Showing 1-10 of 2,301 reviews