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Internet #205326634

Model #K-3811-0

Store SO SKU #1000113178

Santa Rosa Comfort Height 1-Piece 1.6 GPF Single Flush Compact Elongated Toilet with AquaPiston Flush in White

  • Slow close seat included with purchase
  • KOHLER AquaPiston releases water from 360 degrees around
  • Comfort Height offers chair-height seating (about 2 in. taller)
  • See More Details

per month* suggested payments with months* financing on this $339.09 purchase*

Frequently Bought Together


Product Overview

The Santa Rosa Comfort Height 1-piece compact elongated 1.6 GPF toilet offers the exceptional functionality you expect from KOHLER in a smaller footprint, so you can transform even the smallest of bathrooms into a well-designed, comfortable space. 1-piece toilets integrate the tank and bowl into a seamless, easy-to-clean design. A 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
  • 1.6 GPF (gallons per flush)
  • 2-1/8 in. glazed trap-way
  • Standard left-hand trip lever included
  • Includes brevia quiet-close with grip-tight seat
  • 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
  • Features to consider when buying a toilet

Info & Guides

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Bowl Height without Seat (in.)
Flush Valve Size (in.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Bowl Height
Chair Height
Bowl/Seat Shape
Color Family
No Additional Features
Flushing Technology
Gravity Fed
Flushing Type
Single Flush
Gallons Per Flush
Handle Location
MaP Performance Rating
Vitreous China
Mount Location
Floor Mount
Product Weight (lb.)
Rough In Size
12 inch Rough In
Seat Front Type
Toilet Type
Trapway Diameter (in.)
Trip Lever Location
Left Side

Warranty / Certifications

Certifications and Listings
ADA Compliant,ANSI Certified,ASME Certified,CSA Certified,EPA Approved
Manufacturer Warranty
1-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

  • 4.4
    out of 707 reviews
  • 83% recommend this product
Filter by:
Showing 1-10 of 707 reviews
Design flaw
I wish I had read the reviews before purchasing. Same issue. The lid doesn’t fit. The unglazed area looks dirty and old. If there’s a solution with a lid that overhangs…why not just send that one with the toilet. This is clearly a design flaw they are aware of.
by DKB
Response from CSJun 26, 2021
Hi DKB, this is Sarah with Kohler Co. I'm sorry to hear your Santa Rosa toilet is showing a gap between the tank and 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 offer a tank lid which will over hang this gap, for those who prefer this aesthetic option. Please call us at 1-800-4KOHLER (M-F; 8am-5pm CST). Your delight is our top priority! -Sarah S. Kohler Customer Service
Bad seam and cracked seat
Had 3 of the Kohler Santa Rosa toilets installed in our home 3 months ago. One of them already has a cracked seat (I weigh 205 and my wife 140). All of them have the unfinished glaze where the top meets the tank. Try to pull it as far forward as possible, but still shows brown from the lack of glazing. Poor design and execution.
by sad62
Response from 3CJun 14, 2021
Hi, this is Lisa with Kohler Co. I am sorry to hear of your experience with your Santa Rosa™ toilets and the seats that were paired with them. We would like to connect with you direct to discuss this further. Please feel free to contact us at 1-800-4KOHLER (M-F, 8 a.m. – 5 p.m. CST) for further assistance. We are glad to help! Sincerely, Lisa A., Kohler Customer Service.
Lid glaze issue & white color issue
We just had this K-3811 Santa Rosa toilet (white) installed and ran into same issue as others. The lid does not fit properly and the unglazed area can be seen. Also, this toilet definitely isn't the white glaze as shown on your web sites, it looks more like the biscuit color. Wasn't the look we were looking for with a white vanity, white marble tiles and now an off-white glazed toilet.
by Gil G
Response from CSMay 28, 2021
Hi Gil G, this is Sarah with Kohler Co. I'm truly sorry that your Santa Rosa tank lid is not fitting and that the color does not match the rest of your white bathroom. We do have a new tank lid which will overhang the tank lid and conceal the gap. We are happy to assist with your warranty by providing a replacement. To verify the color, please locate the serial number label on your toilet. The label may be inside the tank or on the back of the bowl/tank. It is on a label with a barcode. The serial number will be combination of letter and numbers and will likely start with the letter S. Please call our team at 1-800-4KOHLER for additional assistance. Sincerely, Sarah S. Kohler Customer Service
Lid doesn't fit correct - unglazed area shows
I just installed two of these - and the lids do not cover the unglazed insides of tank - very unattriactive
by ScubaSue
Response from CSMay 3, 2021
Hi ScubaSue, this is Sarah with Kohler Co. I'm sorry to hear you aren't completely satisfied with the appearance of your Santa Rosa toilets. Due to the unique design of this toilet, there may be a small gap between the tank lid and top of the tank. We do have a tank lid that overhangs the top of the toilet tank. This will hide the gap. Please call our Customer Service team at 1-800-4KOHLER (M-F; 8am-5pm CST) for additional assistance. We're here to help. -Sarah S. Kohler Customer Service
Unfinished glazing and lid doesn’t fit
[This review was collected as part of a promotion.] We just had this product installed and ran into same issue as others. The lid does not fit properly and the un glazed area can be seen. This falls short of my expectation of Kohler quality
by Gproth
Response from Customer Service Jan 13, 2021
Gproth, my name is Jessica with Kohler Co. I am sorry to hear of the glazing issue you are experiencing. 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 connect with you to aid in a replacement tank lid which will cover the unglazed portion. Please contact our Customer Service team at 1-800-4Kohler. We look forward to hearing from you soon. - Jessica P. Kohler Customer Service.
Avoid this product.. unfinished glazing
I bought two of these toilets for new bathrooms. Contractor finally installed them and surprised at how ugly they look when there is an obvious unglazed raw beige seam all around the lid on both units that looks like you bought the wrong lid for the toilet. It is an obvious mistake in how the product is made and I can't believe they would ship this. If you can't glaze the top edges of the toilet tank at least make a lid that overlaps the edge geniuses. Toilet has worked for a week so far but looks like a cheap toilet and if I saw this in a store I wouldn't have purchased it. Too late now that I have to live with the ugliness and comments from guests as to why the toilet looks "dirty".
by not_happy
Response from 3C Customer ServiceOct 28, 2020
Hello, my name is Keisha with Kohler Co. I am sorry to hear about your concerns with the Santa Rosa toilet. We design our products with customers like you in mind and regret to hear this toilet was not the right choice for you. Please contact our Customer Service team at 1-800-456-4537. We look forward to hearing from you and providing a resolution.
Great product and a nice upgrade over the 15-year old toilets we had. Would recommend.
Great product and a nice upgrade over the 15-year old toilets we had. Would recommend.
by OccasionalDIYer
5 people found this helpful
Very satisfied this far.
Very satisfied this far.
by Black
2 people found this helpful
A nice compact toilet that works
Kohler, Santa Rosa,1.6 gallon flush, color: Biscuit. I ordered it online and picked it up at the store which all went smoothly. Installation was typical for a one piece toilet; heavy to set in place but still very easy. Purged the water line, hooked it up and it has been work fine ever since. It looks great and being one piece it is easier to clean!
by HomeOwner
8 people found this helpful
Had toilet for about a month now. Works get. Replace old toilet that just didn't flush. Nice one ...
Had toilet for about a month now. Works get. Replace old toilet that just didn't flush. Nice one piece design good height. Has a awesome flushing power one flush all is gone.
by AX
9 people found this helpful
Showing 1-10 of 707 reviews