KOHLER Cimarron 2-piece 1.28 GPF High Efficiency Elongated Toilet with AquaPiston Flushing Technology in White-K-3609-0 - The Home Depot
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Model # K-3609-0

Internet # 100675332

Cimarron 2-piece 1.28 GPF High Efficiency Elongated Toilet with AquaPiston Flushing Technology in White

KOHLER Cimarron 2-piece 1.28 GPF High Efficiency Elongated Toilet with AquaPiston Flushing Technology in White

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$252.14 / each
  • Features elongated bowl for extra room and comfort
  • Provides water savings of up to 16,500 gallons per year
  • Highly rated for easy-to-install design (see reviews)


Model # K-3609-0

Internet # 100675332

Store SO SKU # 285286

This WaterSense-labeled high-efficiency toilet combines water conservation with the versatile style of the Cimarron collection A 1.28-gallon flush provides significant water savings of up to 16,500 gallons per year, compared to a 3.5-gallon toilet, without sacrificing performance This toilet features innovative AquaPiston technology, a patented flush engine, that delivers a fast, powerful, and plug-free flush An elongated bowl, positioned at the height of a standard chair, offers comfort and ease of use.

  • 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 gallons per flush
  • Left-hand Polished Chrome trip lever included
  • Seat and supply line not included
  • Combination consists of the K-4309 bowl and the K-4421 tank
  • Coordinates with other products in the Cimarron collection
  • 12 in. rough-in
  • Elongated bowl
  • 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 degrees), 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
  • Light-touch canister flush requires a lower actuation force than a flapper
  • AquaPiston canister flush valve optimizes flush performance and resists warping and deterioration
  • Standard 12 in. rough-in.
  • DryLock System saves installation time and helps prevent water leakage.

    Kohler AquaPiston Flushing Technology

Info & Guides

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Bowl Height (in.) 
Flush Valve Size (in.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Bowl Height 
Comfort Height 
Bowl Shape 
Color Family 
Commercial / Residential 
Flushing Mechanism 
Gravity Flush 
Flushing Technology 
Gravity Fed 
Flushing Type 
Single Flush 
Gallons Per Flush 
1.28 gal (US) 
MaP Performance Rating 
Vitreous China 
Product Weight (lb.) 
87.5 lb 
Rough In Size 
Toilet Features 
No Additional Features 
Toilet Included Components 
Trip Lever Location 
Left Hand 
Trip Lever Location 
Left Side 
Warranty / Certifications
Certifications and Listings 
ADA Compliant 
Manufacturer Warranty 
One-Year Limited Warranty 


Rated 4.4 out of 5 by 155 reviewers.
Rated 5.0 out of 5.0 by After three years of use..... After three years of use, I can unconditionally say that we are very pleased with the performance of these toilets (we bought two, one for each bathroom). Not once has the toilet plunger stored in the garage been brought into service. Never have we had to flush more than once to dispose of the "job" that had been deposited. Never have our guests nervously brought us the news that "the toilet isn't working - do you have a plunger?" We would heartily recommend these toilets to anyone - especially the elderly whose knees don't bend as far as they used to, and whose leg muscles are getting weaker. May 14, 2015
Rated 5.0 out of 5.0 by Went in easy. Flushes like a champ. Family thinks it's the best toilet in the house! Great footprint. Comfortable height. Excellent power flush. Quiet, fast fill. Very easy install. Only one gasket to replace when it's really old, where the tank mates the bowl. The bolts don't touch water so no stupid triangle gasket adding three potential points of failure. Water in bowl has proper placement - not too high so no wet toilet paper or worse - hands or gems. Not too low to avoid dry bowl skid marks. I find no reason to spend more for a 2-piece toilet. You won't beat the flush performance. August 1, 2013
Rated 5.0 out of 5.0 by Work great! I read a lot of reviews before deciding on this toilet. We installed it with a Danco Perfect Seal toilet ring (DO THIS), and it went in easily. The seal was great, because we were able to remove the toilet to put in longer floor bolts and seat it again. It flushes great, and is not noisy. At first the water line was too high, but we were able to easily adjust it to the marked level. I like the comfort height. We added a Kohler self closing seat, which is sturdy and works well. Do check for damage--the toilet was upside down in the shipping boxes, and the bowl broke through its box, but was undamaged in the shipping box. The lid had a broken piece on the inside, due to it being shipped just sitting on the tank with no padding or strapping. It didn't affect the fit of the lid, so we didn't return it. December 17, 2014
Rated 4.0 out of 5.0 by So far so good Nice design for our remodeled master bath. The elongated shape is the way to go nowadays. These toilets ship in two boxes - the bowl and the tank. The bowl itself is relatively heavy but I managed well enough on my own. The tank bolts do not go through the tank itself but intead latch onto a black underside bracket - so less leak worries in the future. Toilet flush on max water isn't what I'm use to on the older models but it does the job. Easy to adjust water level without tools. Relatively quiet overall function. Wax ring, floor bolts and seat are NOT included. The white bowl floor caps come in the tank portion of the order. The bowl box features just the bowl itself. May 12, 2011
Rated 5.0 out of 5.0 by Great update. Should have updated before now. More comfortable height and shape. Great flush design. Only need to flush once for sure. Had new fixture professionally installed. Removal and replacement took exactly one hour. Plumber took old fixture and box with him. Purchased an elongated, good quality, slow close seat in store. Make a great combo and good investment. One way to beat the city water bills that keep increasing! July 24, 2012
Rated 5.0 out of 5.0 by One Flush Toilet! I love this new toilet. It truly is a low-flow, ONE FLUSH toilet! So many low-flow toilets take two or three flushes to get everything to go down. What a waste; you still use as much water as the old toilets! The height is perfect too. As I get older I find my knees not as cooperative anymore when getting off of a low seat. Perfect toilet! I am going to buy one for the powder room now. May 8, 2012
Rated 5.0 out of 5.0 by Great Choice Easily installed two -- had first one shipped, small enough box to get second one at Home Depot as it fit back seat of car -- and no problems, two years ago. Excellently designed except for too flexible lid. Flushes quickly, quietly, completely. April 24, 2014
Rated 3.0 out of 5.0 by The product works well but had an issue during installation Because of the metal plate on the bottom of the tank, and to maintain the proper seal with the bowl, it was impossible to get the tank level. It is off by a fourth of an inch on one side. The proposed solution by the plumber I used to install the toilet was to shim up the bowl on one side so that it would be level. I elected not to do this since it would have been noticable when looking at the base. Since I ordered online, this issue was not apparent until the toilet was installed. Needless to say, it was not feasible to return the tank for a different one. Otherwise, the toilet works fine, but I recommend buying it in a store and not ordering online. June 11, 2012
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