Message to Our Customers


Model # K-3609-7

Internet # 202060521

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

This item has been discontinued.
The Home Depot no longer carries this specific product.
Please select another option below.

$455.36 /each



Model # K-3609-7

Internet # 202060521

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-Gal 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.

  • 2-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 GPF
  • 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°), 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

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Bowl Height (in.) 
Flush Valve Size (in.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Bowl Height 
Comfort Height 
Bowl Shape 
Color Family 
Black Black 
Commercial / Residential 
Flushing Mechanism 
Gravity Flush 
Flushing Technology 
Gravity Fed 
Flushing Type 
Single Flush 
Gallons Per Flush 
1.6 gal (US) 
MaP Performance Rating 
Vitreous China 
Mount Location 
Floor Mount 
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 157 reviewers.
Rated 5.0 out of 5.0 by AWESOME Easy to install, "NO" leaking from tank-to-bowl connection due to the innovative connection design. (Respectfully)-This toilet will flush large stool loads completely with no second flushing required. If you plug this toilet than you must be using way to much toilet paper.I originally purchased another brand made toilet, and had to replace it due to a leaking tank/bowl connection. This Kohler toilet will flush as well as the other brand, which is reported to be a better flushing unit. The 16.5" bowl height of this toilet has really improved the comfort level for doing the deed. Overall-- an EXCELLENT product. June 24, 2012
Rated 5.0 out of 5.0 by Super simple installation even with working with an old house Product arrived on time and in good condition. Installation was a breeze. Might have been nice for someone to mention the seat was not included but maybe I missed it. May 1, 2012
Rated 5.0 out of 5.0 by Great product looks very nice, works well.. I am very pleased with this purchase,definitely no buyers remorse.. Great looking product in black... July 24, 2012
Rated 5.0 out of 5.0 by Great quality Love the appearance May 4, 2011
Rated 3.0 out of 5.0 No toilet seat included!!! Nice toilet but it wasn’t cheap and got a whole lot more expensive when I had to purchase a seat for it. In fine print it stated that a seat wasn’t included. Why not??? For the price paid it should have auto flush. I will never purchase another toilet or anything from Home Depot online. I will not purchase another anything from Koehler. Come on $500 plus tax and no toilet seat?? September 6, 2011
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 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
  • 2015-07-26T11:53:33.052-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_157, tr_157
  • loc_en_US, sid_202060521, prod, sort_default
2 3 4 5 6 >>


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

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