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Santa Rosa Comfort Height 1-Piece 1.28 GPF Single Flush Compact Elongated Toilet with AquaPiston Flush in White

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  • Slow close seat included with purchase
  • KOHLER AquaPiston releases water from 36 degrees around
  • Comfort Height offers chair-height seating (about 2 in. taller)
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Product Overview

This compact one-piece Santa Rosa toilet integrates the tank and bowl into a seamless design for your bathroom. Providing an efficient 1.28 GPF, this toilet is designed with a quiet-close seat and a standard 12-in. rough-in. Its Comfort Height feature adds about 2 in. to the chair seating for easy use and comfort.
  • One-piece toilets that integrates tank and bowl into a seamless, easy-to-clean design
  • Compact elongated bowl offers added comfort while occupying the same space as a round-front bowl
  • Comfort height feature offers chair-height seating that makes sitting down and standing up easier for most adults
  • 1.28 GPF
  • Standard 12 in. rough-in
  • Includes brevia quiet-close with grip-tight seat
  • Light-touch canister flush requires a lower actuation force than a flapper
  • Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong siphon during flushing
  • Aquapiston canister allows water to flow into the bowl from all sides (360°), increasing the power and effectiveness of the flush
  • Flush valve's 3: 2 ratio harnesses the natural force of gravity and optimizes flush performance
  • Durable canister design has 90% less exposed seal material than a 3-in. flapper, for leak-free performance
  • Watersense toilets meet strict EPA flushing guidelines, including using at least 20% less water than 1.6 Gal. toilets
  • Click here to learn more about Eco Options and Water Conservation
  • The Best Toilet For Your Home
  • Features to consider when buying a toilet
  • Eligible for consumer rebates in some municipalities

Additional Resources

From the Manufacturer

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Bowl Height without Seat (in.)16.5Flush Valve Size (in.)3.0
Product Depth (in.)27.75 inProduct Height (in.)28.1875 in
Product Width (in.)18.75 in


Bowl HeightChair HeightBowl/Seat ShapeElongated
Color FamilyWhiteColor/FinishWhite
FeaturesNo Additional FeaturesFlushing TechnologyGravity Fed
Flushing TypeSingle FlushGallons Per Flush1.28
Handle LocationLeftIncludedBolts,Seat
MaP Performance Rating1000MaterialVitreous China
Mount LocationFloor MountProduct Weight (lb.)102 lb
Returnable90-DayRough In Size12 inch Rough In
Seat Front TypeClosedStyleMinimalist,Modern
Toilet TypeOne-PieceTrapway Diameter (in.)2.125
Trip Lever LocationLeft Side

Warranty / Certifications

Certifications and ListingsADA CompliantManufacturer Warranty1-Year Limited Warranty

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.5
    out of 2,480 reviews
  • 87%recommend this product
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Showing 1-10 of 2,480 reviews
Ok Toilet
I only gave this toilet 3 stars because I am disappointed with the way it looks. The cover of the tank does not fit properly. It is too small. It does not fully cover the tank. You can see a strip of the unfinished tank.
  • Verified Purchase
I excellent in all respects except one- mold.
Our previous conventional toilet needed to be replaced after 20+ years and we went with Kohler. But although the toilet gets a professional cleaning every two weeks and regular cleaning by us in between we cannot control a black mold which seems to form in the holes under the rim.
    • Recommended
    1 found this review helpful
    Kohler Santa Rosa
    purchased this toilet on 1/2/22. Very nice toilet, smaller footprint then my previous one. Install was very easy. Only disappointment was for a top of the line product with a price to match, it should come with the self closing seat instead it's just the standard.
      2 found this review helpful
      Santa Rosa
      I bought this earlier this year, but it just got installed a couple months ago. If I had known about the issue with the tank finish mentioned in other reviews I would have purchased a different style. I have the same issue with the glaze not covering the area between the tank and lid as shown in the photo. The toilet is fine otherwise, and I have a different model in my other bathroom that I love. I paid more for the Kohler brand because of the quality, so I don't understand why this issue hasn't been fixed or the design changed.
      Response from CSDec 20, 2021
      Hi KariS, this is Sarah with Kohler Co. I am sorry to read you are not completely satisfied with the appearance of your tank lid. The Santa Rosa toilet has a unique tank lid custom designed for proper fit with the Santa Rosa toilet. There will be a slight gap between the lid and top of the tank, by design, to aid with fit and function. It is intended to display an effortless transition between the tank lid and toilet. We do make a secondary tank lid with a slight overhang to conceal this gap. Please call our Customer Service team at 1-800-4KOHLER (M-F; 8am-5pm CST) for additional assistance. Your delight is our top priority! -Sarah S. Kohler Customer Service
        Great size for small space
        I purchased this toilet over One year ago. I was in the midst of an apartment demolition and it was installed and has been working perfectly. The size and height are perfect for my apartment. Unfortunately I found the seat to be cracked one day with no explanation. This is a Pied a terre that is only used by my self and my spouse on weekends. I could not understand how this crack could have occurred with trauma to the toilet. Disappointed to say the least. The toilet however works great! Shoddy product on the quality of the soft close seat.
          VERY disappointed with lack of porcelain finish around lid
          Just had our new Santa Rosa installed. We are VERY disappointed the porcelain is not finished to the top of the tank. Rough, light brown tank is exposed on the front even with the lid fitting properly. We expected MUCH better from a Kohler product. Otherwise, the toilet appears to work ok.
          Response from Kohler Product ExpertJun 17, 2021
          Hi VJL, this is Sarah with Kohler Co. I'm sorry to read about your feelings regarding your Santa Rosa tank lid. The Santa Rosa toilet has a unique tank lid custom designed for proper fit with the Santa Rosa toilet. There will be a slight gap between the lid and top of the tank, by design, to aid with fit and function. It is intended to display an effortless transition between the tank lid and toilet. We would like to connect with you directly so that we can help! Please email us at KohlerCustServ@kohler.com. Your satisfaction is a top priority! -Sarah S. Kohler Customer Service
            8 found this review helpful
            I like the function of the toilet. I’m not sure...
            I like the function of the toilet. I’m not sure if this is how they are all made but in the front at the top of water reservoir the porcelain isn’t covered completely to the top. The lid doesn’t hide it all.
            • Verified Purchase
            7 found this review helpful
            I never gave much thought to toilet style and functionality...
            I never gave much thought to toilet style and functionality until I visited Japan. When I remodeled my master bath, I wanted a high quality, minimalistic toilet without spending the money for a Toto. The Kohler Santa Rosa is great. It fits perfectly with my modern Asian design and it takes care of business. When I remodeled my guest bath, I bought a second one. It’s the perfect throne!
            • Verified Purchase
            4 found this review helpful
            Toilet seat will not stay on
            Instead of being closed the holes for the mounting of the toilet seat are open and tend to spread open. Cannot keep the seat mounted, I can't imagine why they would have this configuration. The only solution I see is to buy a new toilet seat. I would not recommend anyone to buy this unit with this configuration.
            Response from csOct 7, 2020
            Hello Len, this is Laura with Kohler Co. I am sorry your seat is not staying mounted on the bowl. The hinge caps must be closed to prevent the seat from moving. If the hinge caps are not working properly, the seat may come loose. Please call 1-800-4Kohler so we may assist you with the hinge on your toilet seat. We want to help! Sincerely, M. Laura K., Kohler Customer Service
              Hard to repair
              From the beginning the seal in the tank has leaked. Periodic “whoosh” noise as water escapes into bowl. Paid plumber several times to replace the seal, but it doesn’t last long. Now there is a high-pitched squeal at end of flush cycle as water finishes filling the tank, probably coming from the float mechanism. I agree - don’t buy unless you are a plumber - not easy to repair.
              Response from Customer Service Aug 15, 2020
              Katie, my name is Jessica with Kohler Customer Service. I am sorry to hear of the issues you are experiencing with your Santa Rosa toilet. This is nothing you should expect when you choose Kohler. The squeal you are hearing when the water is filling the tank can be due to there being debris in the fill valve, the following link is to an instructional video showing how to flush the valve out: https://bit.ly/39x9Tgo. If the issue continues after the valve has been flushed out, please contact our Customer Service team at 1-800-4Kohler. We look forward to hearing from you soon! - Jessica P. Kohler Customer Service.
                Showing 1-10 of 2,480 reviews