Kohler K-3810 Almond Santa Rosa 1.28 GPF One-Piece Elongated Comfort Height Toilet with AquaPiston Technology - Seat Included

- Item #: BCI1686500

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  • Wax Ring Kit Required

Product Features:

  • One-piece configuration provides a uniform look and simplifies installation
  • Elongated bowl offers comfort and convenience, extending out an extra 1-1/2" compared to a round configuration
  • Covered under Kohler's 1 year limited warranty
  • The Santa Rosa toilet offers exceptional functionality with a small footprint
  • Constructed of durable, easy to clean vitreous china
  • Installs in a floor mounted configuration
  • Features a powerful gravity flush with AquaPiston technology
  • ADA compliant - complies with the standards for toilets set forth by the Americans with Disabilities Act
  • Comfort Height - designed for ease of use, with a higher than average bowl
  • WaterSense certified - toilet uses 20% less water than the current standard while still maintaining superior performance
  • Includes a seat and cover

Product Technologies / Benefits:

  • AquaPiston: AquaPiston single flush canister technology uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong, efficient siphon during flushing. The canister flush valve's 3:2 ratio optimizes flush performance and resists warping and deterioration, while its durable design features 90% less exposed seal material than a standard 3-inch flapper flush valve, guaranteeing leak-free performance. The light-touch canister requires lower activation force than a flapper, and once activated, allows water to flow into the bowl from all sides (360 degrees), increasing each flush's power and effectiveness.
  • Comfort Height: Comfort Height toilets offer the greatest accessibility and ease of use with a bowl height of between 16-1/2" and 18", the same as a standard chair.
  • WaterSense Certified Product: To help make a difference on a global scale and to further its role as an industry leader in eco-performance practices, Kohler has established partnerships with a number of environmental organizations, including WaterSense. Many Kohler faucets and toilets are equipped with low-flow technology - they use less water, while continuing to meet superior performance standards.

Product Specifications:

  • Overall Height: 28-3/16" (measured from bottom of base to top of tank)
  • Overall Depth: 27-3/4" (measured from back of tank to front of rim)
  • Overall Width: 18-3/4" (measured from rightmost to leftmost edge of toilet)
  • Bowl Height: 16-1/2" (measured from floor to bowl rim)
  • Flow Rate: 1.28 GPF (gallons per flush)
  • Water Area: 11" x 8-1/8" (inner rim dimensions of bowl, length x width)
  • Water Depth (from Rim): 6-1/4"
  • Tank Width: 18-3/4" (measured from leftmost to rightmost edge of tank)
  • Tank Depth: 6-9/16" (measured from back edge to front edge of tank)
  • Trapway (Discharge Passageway) Size: 2-1/8"
  • Distance Between Toilet Seat Installation Holes: 5-1/2"
  • Rough-In: 12"


  • K-3810: This model
  • K-3811: 1.6 GPF version of this model

About Kohler:

Gracious living is characterized by qualities of charm, good taste, generosity of spirit, and the enhancement of nature. It is Kohler's mission that you improve your sense of gracious living with every experience you have with a Kohler product or service. Kohler lives on the leading edge of design and technology, while maintaining a constant level of quality, regardless of price. It sets the standard of excellence in its field, and yet is constantly striving to improve. From sustainable products in the kitchen and bath to power systems that protect data centers and urban landscapes all over the world - this is what the Kohler company is all about.

Additional Kohler Links

Our SKU: Kohler K-3810

This product is listed under the following manufacturer number(s):

  • Kohler K-3810-47
  • Kohler K-3810-96
  • Kohler K-3810-7
    Black Black
  • Kohler K-3810-K4*
  • Kohler K-3810-NY
  • Kohler K-3810-95
    Ice Grey
  • Kohler K-3810-55*
    Innocent Blush
  • Kohler K-3810-33*
    Mexican Sand
  • Kohler K-3810-G9
  • Kohler K-3810-58*
    Thunder Grey
  • Kohler K-3810-0

*Denotes a finish or option that has been discontinued

Product Videos

  • How to remove and install a Toilet
    If you have been considering replacing your toilet, yet are wondering how complicated of a job this is? Take a moment and we'll show you just how simple this job can actually be.

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Kohler K-3810 Reviews

Rated 5 out of 5 by from Throw away the plunger Purchased and installed three white Santa Rosa's in our new construction. Was a bit concerned as we had no experience with 1.28 gal flush models, but I have to say, Kohler has definitely figured it out. They've now been in service for 8 months and not one clog! Better than the AS Champions we had in our previous home. Comments about them being noisy? It sounds like a toilet flushing... you were expecting something different?. A great value without breaking the budget.
Date published: 2013-01-20
Rated 5 out of 5 by from Great Toilet, great service I got this toilet in the "Mexican Sand" color which was as portrayed on the website. It was less $$ than the local dealer (of course!) plus it was in stock where the local dealer was going to take 4-6 weeks. It It came exactly on the day they said it would - the morning of Hurricane Sandy which didn't hit our area until later that day! No problems with the delivery, the box was intact with no damage and the toilet was in perfect condition. It was installed a few days later and I just LOVE the operation. Love too that it uses only 1.28 gals instead of the 1.6 gals that I had had there. All in all, a great experience with Facetdirect. Would order from them again and again (and have)...
Date published: 2012-11-27
Rated 5 out of 5 by from EXCELLENT CUSTOMER SERVICE Well, we opened the box yesterday, only to find that there was a HUGE broken piece on the toilet base. I called and expected to receive the usual run-around ('You accepted it, so you deal with it.' Sorry, it's been more than 2 weeks....'). To make a long story short, I got a 'Sorry, we'll ship you another on in 1-2 days.' Smart, very smart. THIS is the way to keep happy customers and get great word of mouth advertising. THANK YOU, FAUCETDIRECT !!
Date published: 2013-01-02
Rated 5 out of 5 by from High quality product I have used Kohler products before so as expected I was very satisfied with my purchase. Only issue I had was that it was a chore to get the seat to line up properly with the bowl. Kohler have changed the attachment fittings to allow for simple seat removal for cleaning but the result is too much play in the fittings but not enough adjustment. The purchase was simple and delivery very quick.
Date published: 2012-09-25
Rated 5 out of 5 by from Kohler Santa Rosa Looks great, flushes well, easy to install. Installed about a month ago, very happy with the performance: flushes completely and cleans sides well. We've had to flush a second time once or twice, but I think that's to be expected with any 1.28 gallon toilet.
Date published: 2011-05-21
Rated 5 out of 5 by from best valued one piece toilet This is the best looking, best performing, best priced one piece toilet on the market in my opinion. I use it in almost all my bathroom remodels and new builds.
Date published: 2012-11-28
Rated 5 out of 5 by from Great purchase; Great service We ordered 2 Santa Rosa Kohler toilets, which were much less expensive than ordering from Kohler direct for the same exact product. The sales rep. worked with us to help with shipping costs (coupon) since because of the weight we had to pay freight. We received both toilets in one shipment within 3 days. They are now installed and look great, with terrific functionality! Thank you Faucet Direct.com!
Date published: 2012-08-14
Rated 5 out of 5 by from excellent company This is a really nice toilet. But I wanted to also note what an excellent company Build.com is. The first toilet was flawed and they replaced it right away. Good Service!! You don't always find this in today's market!!
Date published: 2013-08-13

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