KOHLER Rialto 1-piece 1.6 GPF Round Toilet in Biscuit-K-3386-96 - The Home Depot
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Model # K-3386-96

Internet # 100012818

Store SKU # 826215

Rialto 1-piece 1.6 GPF Round Toilet in Biscuit

KOHLER Rialto 1-piece 1.6 GPF Round Toilet in Biscuit

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$529.01 / each


Model # K-3386-96

Internet # 100012818

Store SKU # 826215

Store SO SKU # 285286

Curvy and compact, this one-piece toilet makes a strong design statement. A space-saving tank curves seamlessly into a round-front bowl for a low-profile silhouette. This toilet includes ergonomically designed seating, and a lid with an indented area to keep fingers from touching the seat. At 1.6 gallons per flush, this Rialto toilet delivers strong, quiet flushing performance.

  • The smallest toilet from front-to-back in the industry is perfect for small spaces
  • Rim Jet flushing technology
  • Round-front bowl
  • 12 In. rough-in
  • Includes French Curve toilet seat and trip lever
  • Includes flexible supply line
  • Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong siphon during flushing

Info & Guides

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Bowl Height (in.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Bowl Height 
Bowl Shape 
Color Family 
Commercial / Residential 
Complete Toilet Kit 
Flushing Mechanism 
Gravity Flush 
Flushing Technology 
Gravity Fed 
Flushing Type 
Single Flush 
Gallons Per Flush 
1.6 gal (US) 
MaP Performance Rating 
Not Rated 
Vitreous China 
Mount Location 
Floor Mount 
Product Weight (lb.) 
107 lb 
Rough In Size 
Toilet Features 
No Additional Features 
Toilet Included Components 
Warranty / Certifications
Certifications and Listings 
CSA Certified 
Manufacturer Warranty 
One Year Limited Warranty 


Rated 3.5 out of 5 by 74 reviewers.
Rated 5.0 out of 5.0 by This Toilet MEANS Business!! We own 3 houses which contain a total of 8 bathrooms. Of the 8 bathrooms, 8 have this toilet. Theres a reason we have this particular toilet in all 8 bathrooms including our outdoor one (which everyone and I mean everyone uses). It works!! You could put a whole roll of toilet paper in and it flushes no matter what, it never gets clogged, EVER!! We have had 2 of these toilets for over 20 YEARS and they have never clogged before, not even once! This toilet is also very easy to clean, it doesn't seem to get dirty easily either, which is an added bonus. I highly, HIGHLY recommend this toilet, especially to you over excessive toilet paper users!! :D September 14, 2007
Rated 2.0 out of 5.0 by Good Looking / Poor Performance Looks good. Have to flush twice before it will flush. Leaves stuff around the walls. The vax ring doesn't fit properly and was leaking. Had to put two vax rings. December 30, 2009
Rated 4.0 out of 5.0 by Perfect Size and Color (Biscuit) I needed a small toilet for a guest bathroom and this is the perfect size. It looks really nice and I know Kohler is a good product (I've had one in my master bath for 26 years). I read some of the reviews indicating problems with this toilet, but decided to purchase anyhow due to my personal experience with the Kohler brand, which has been excellent. August 7, 2011
Rated 5.0 out of 5.0 by Excellent toilet so far! I did not install it myself but the plumber had no complaints! Toilet fit into a very small powder room and it was exactly what I was looking for.....Shipping was fine and dropped outside my front door as was indicated when I choose basic delivery options.... August 28, 2012
Rated 5.0 out of 5.0 by Good value Excellent Kohler product, we have owned the same model toilets for 8 years and no problems. July 10, 2012
Rated 4.0 out of 5.0 by nice small size for tight 1/2 b aths! Flushing power is average but does the job, attractive style for a toilet. Heavy for its size. On the expensive side but worth the size tradeoff! June 19, 2012
Rated 4.0 out of 5.0 by Kohler Rialto Toilet I had this toilet in a previous house for 9 years with absolutely no problems. Great for an ensuite as it has a quiet flush. The home I recently moved to has this toilet -- about 15 years old - small town -- plumbers don't keep stock of parts. Flapper was rotten -- phoned Kohler myself (toll-free number) , part cost $8.80 - shipped free -- received in one week. Installed myself. Would buy again. August 28, 2008
Rated 1.0 out of 5.0 expensive, expensive parts,expensive to repair had a leak somewhere dripping ourt of the main water feed hose. wasn't sure where it was, so started with the cheapest solution, and replacing the hose didn't fix it. Found that the ballcock had to be replaced (defective pipe). cost $250 for the part. time to buy a new toilet. July 2, 2008
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Basic Home Shipping includes delivery to your doorstep or first dry area outside with no signature or appointment required. Delivery services for this item may be upgraded for an additional fee.

Other Delivery Options:

Threshold Home Shipping (By Appointment) includes delivery across your first doorway or threshold (i.e. into garage, backyard, or first room of the home). The carrier will contact you to make a delivery appointment with a 4 hour window once the items have arrived at the local hub in your area. Delivery appointments are required.

White Glove Home Shipping (By Appointment) includes delivery to the room of your choice, unpacking and debris removal. Assembly is not included. The carrier will contact you to make a delivery appointment with a 4 hour window once the items have arrived at the local hub in your area. Delivery appointments are required.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.