Kohler K-3597 San Raphael 1 GPF One-Piece Elongated Comfort Height Toilet with Seat

- Item #: BCI453661

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$798.30 - $1,193.21
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  • 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.

This product has additional required/recommended options. To configure, add to your cart.

  • Angle Supply Recommended
  • Wax Ring Kit Required

Product Features:

  • One-piece configuration provides a uniform look as well as simplifies installation
  • Elongated bowl gives a modern and comfortable look and feel extending out an extra 1-1/2" compared to a round configuration
  • Covered under Kohler's 1-year limited warranty
  • Made from vitreous china for a classic look and feel
  • Floor mounted for an easy and simple installation
  • Pressure Lite® flush technology gives you a more robust flushing power with less water used doing it
  • ADA compliant - complies with the standards set forth by the Americans with Disabilities Act for toilets
  • Comfort height - providing a higher seat, sometimes referred to as a handicapped toilet, it is designed for ease of use
  • WaterSense certified - toilet uses 20% less water than the current standard while maintaining superior performance
  • Supply lines not included - will be prompted to purchase when added to cart

Product Specifications:

  • Overall Height: 21-1/2" (measured from the bottom of the base to the highest point on the toilet)
  • Overall Length: 30" (measured from the back of the tank to the front of the rim)
  • Overall Width: 19-1/2" (measured from the furthest point on the left to the furthest on the right)
  • Bowl Height: 16-1/2" (measured from the bottom of the base to the rim)
  • Flow Rate: 1.0 GPF (gallons-per-flush)
  • Water Area: 9" x 7" (inner rim dimensions length X width)
  • Water Depth (From Rim): 5-7/8"
  • Tank Width: 19-1/2" (measured from left most to right most points on tank)
  • Tank Length: 9-3/4" (measured from back most to front most points on tank)
  • Trapway (Discharge Passageway) Size: 2-1/8"
  • Distance Between Toilet Seat Installation Holes: 5-1/2"


Additional Kohler Links

Our SKU: Kohler K-3597

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

  • Kohler K-3597-47
  • Kohler K-3597-96
  • Kohler K-3597-7
  • Kohler K-3597-NY
  • Kohler K-3597-95
    Ice Grey
  • Kohler K-3597-G9
  • Kohler K-3597-58
    Thunder Grey
  • Kohler K-3597-0

*Denotes a finish or option that has been discontinued

Kohler K-3597 Product Specifications

Installation Sheet
Specification Sheet
ANSI Approved Yes
ASME Approved Yes
Bowl Height 16.5
Bowl Shape Elongated
CSA Approved Yes
Comfort Height Yes
Concealed Trapway No
Configuration One Piece
Country Of Origin USA
Depth 30
Flush Technology Pressure Lite
Flush Type Pressure Assisted
Gallons Per Flush 1
Height 21.5
Installation Type Floor Mounted
Insulated Tank No
Length 30
Lever Placement Left
Low Profile Yes
Made in America Yes
Manufacturer Warranty 1 Year Limited
Material Vitreous China
Product Class Residential
Rough In 12
Seat Cover Yes
Seat Front Closed
Seat Included Yes
Soft Close No
Theme Basic
Trapway 2.125
Trip Lever Placement Left
Water Efficient Yes
WaterSense Certified Yes
Width 19.5

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-3597 Reviews

Rated 2 out of 5 by from Too low flow Bought this toilet because of it's low profile and low water usage. It is indeed "Green", but the water volume is just too low flow. Often have to flush it twice to get TP and solid waste out of the bowl. Also very noisy. I suggest that if you are concerned about water usage get a toilet that has 2 flush levels: one for liquid and another for solid waste.
Date published: 2010-01-14
Rated 3 out of 5 by from Kohler Raphael This replaced an earlier Raphael that was inadvertently broken. As with the previous model, the Raphael is a handsome fixture. BUT the new Sloan Flushmate valve has all the subtlety of the cannon chorus of Tchaikovsky's 1812 Overture. KA-BOOM! All that aside, Faucet Direct's service and delivery was excellent. If only the Sloan valve didn't go KA-BOOM!
Date published: 2011-08-06
Rated 5 out of 5 by from Good powerful toilet This toilet is comfortable and has a powerful flush that uses minimal water.
Date published: 2011-11-19
Rated 5 out of 5 by from Startling Loud Flush The mechanism inside produces a relatively loud WHOOSH during the flush cycle. A little unexpected but highly effective at water saving
Date published: 2011-01-09
Rated 5 out of 5 by from Great One-Piece Power Assist Low Flush We struggled with this choice for our new bathroom. After reading many reviews we settled on this power flush, low consumption model. Works very well (Flushmate), is very well made, and looks great!
Date published: 2011-02-05
Rated 5 out of 5 by from Very sculpted looking and with powerful, easy flush! Even though my Kohler San Rafael toilet shipped two months ago, I finally had it installed yesterday. I am so thrilled with this unit. It is compact enough to easily fit under marble shelving in my powder room and looks terrific as well. I was totally impressed with its flush power, not to mention its comfortable height and seat. Given the design and functionality, I plan to purchase two more within the next six months.
Date published: 2014-12-03
  • what is the proper replacement seat for this toilet?

    A. The Kohler K-3597 toilet seat is the standard Kohler K-4748. thank you,

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