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Model #K-3597-58

Store SO SKU #1000472788

San Raphael Comfort Height 1-Piece 1.0 GPF Single Flush Elongated Toilet in Thunder Grey, Seat Included

$148264
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  • Toilet seat included with purchase
  • Pressure Assist technology provides superior flushing performance
  • Comfort Height offers chair-height seating (about 2 in. taller)
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Product Overview

Powered by a Sloan FLUSHMATE pressure vessel, the Thunder Grey San Raphael 1-piece high-efficiency toilet from KOHLER supplies premium flushing power using significantly less water than standard commodes. Each 1.0 Gal. flush represents a 37.5% reduction in water use compared with ultra-low-flush 1.6 GPF toilets that have been commonly installed in bathrooms since the mid-1990s. Combining form with function, the low profile of the San Raphael conveys an elegant contemporary look that will infuse any bathroom with a modern vibe.
  • Available in biscuit, black, almond, white and sandbar
  • Preserves thousands of gallons of water in a typical household and lowers utility bills
  • Vigorous flushing action powered by FLUSHMATE air-pressure vessel
  • Constructed with durable vitreous china that resists cracking, staining and streaking
  • Includes thunder grey elongated toilet seat and lid with quick-release quiet-close hinges
  • Includes left-side chrome trip lever
  • Surpasses EPA's WaterSense standards for water efficiency, using just 1.0 GPF
  • Supply line not included
  • Comfort-height chair-level bowl is situated 16-1/2 in. above the floor for effortless sit-downs and stand-ups
  • 1-piece design forms a seamless tank-to-bowl unit that doesn't need to be bolted together
  • Weighs 117 lbs.
  • Product can help a building earn water efficiency points in the LEED green building rating system, see specification sheet for water use data
  • Features to consider when buying a toilet
  • Features to consider when buying a toilet
  • Click here to learn more about Eco Options and Water Conservation

Additional Resources

From the Manufacturer

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Specifications

Dimensions

Bowl Height without Seat (in.)16.5Flush Valve Size (in.)3.0
Product Depth (in.)30 inProduct Height (in.)21.5 in
Product Width (in.)19.5 in

Details

Bowl HeightChair HeightBowl/Seat ShapeElongated
Color FamilyGrayColor/FinishThunder Grey
FeaturesPressure AssistedFlushing TechnologyPressure Assisted
Flushing TypeSingle FlushGallons Per Flush1
Handle LocationLeftIncludedBolts,Seat
MaP Performance Rating1000MaterialVitreous China
Mount LocationFloor MountProduct Weight (lb.)117 lb
Returnable90-DayRough In Size12 inch Rough In
Seat Front TypeClosedStyleCoastal,Glam,Industrial,Minimalist,Transitional
Toilet TypeOne-PieceTrapway Diameter (in.)2.125
Trip Lever LocationLeft Side

Warranty / Certifications

Certifications and ListingsADA CompliantManufacturer Warranty1-Year Limited Warranty

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 3.7
    out of 110 reviews
  • 55%recommend this product
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Showing 1-10 of 110 reviews
Nice looking toilet matches the Kohler cast iron shower base...
Nice looking toilet matches the Kohler cast iron shower base
by
    Beware seat bolts are not assessable from below.
    I purchases and installed this toilet June 2016, and it works well for the intended use (power flush). About three months ago I needed to remove the seat for replacement, and the left side (facing the toilet) seat fastening bolt broke in half leaving part of it stuck inside the body of the toilet. The seat mounting bolts do not extend through to the underside of the toilet, and they are not easily assessable. The threaded portion of the seat fastener receiving the seat bolt is inserted into the toilet body from inside the tank in a tight area not visible without using a mirror to peak under a 90% turn in the casting. Using a mirror I examined the fastener holding the broken piece of seat fastening bolt, and I discovered it has rusted likely due to moister inside the tank. There is no room to use tools, and the toilet must be replaced.
    by
      5 found this review helpful
      GREAT DISAPPOINTMENT.
      I was quite disappointed with the so called high power flush that cost me over 10x the price of the regular one I was replacing. I still find myself flushing 3 or more times to clear the content. I am now currently shopping for a much more powerful high power flushing one-piece toilet.
      by
      Response from 3CApr 11, 2022
      Hi TONY72, this is Lisa with Kohler Co. I am sorry to hear of the performance concerns you have had with your San Raphael® toilet. We would like to connect with you direct to assist with further troubleshooting. Please feel free to contact us at 1-800-4KOHLER (M-F, 8 a.m. – 5 p.m. CST) for further assistance. We are glad to help! Sincerely, Lisa A., Kohler Customer Service.
      • Verified Purchase
      by
      • Verified Purchase
      COMFORT ANS EASE!!!
      only brand with the grey color and features I need with efficiency and comfort.
      by
      • Verified Purchase
      • Recommended
      Not working may return...
      Not working may return
      by
      Response from Kohler Product ExpertFeb 2, 2022
      Hi Naveen, my name is Meli with Kohler Co. I am sorry to read your San Raphael toilet K-3597-7 is not working. This model is equipped with our Pressure Lite® flushing technology which provides commercial grade flushing power. I would ensure that the supply stop is fully open as this toilet requires a minimum static pressure of 35 psi. If the plunger arm is activating or attempting to activate the actuator when the trip lever is pushed, I would recommend reaching out to Sloan for further troubleshooting. If we may be of further assistance please contact our customer care team at KohlerCustServ@Kohler.com. We are here to help. Sincerely, Meli A., Kohler Customer Service
        Excellent toilet for my space. A little pricey but worth...
        Excellent toilet for my space. A little pricey but worth it for the quality.
        by
          I Really Wanted This To Work
          I love the design and the style of this toilet. It is very sleek. The downside is, when you flush, the toilet shreds the paper and refluxes it back. It takes sometimes several flushes to flush. I am so disappointed so that I am replacing this toilet.
          by
          Response from Kohler Product ExpertOct 17, 2021
          Hi Peml, this is Sarah with Kohler Co. I'm sorry to hear your San Raphael toilet is shredding your toilet paper upon a flush. This is nothing you should expect during normal use. We recommend contacting Sloan by calling 1-800-533-3450 for further troubleshooting. Sincerely, Sarah S. Kohler Customer Service
            It often needs to be washed several times, the noise...
            It often needs to be washed several times, the noise is also loud, and the size is too large for me.
            by
            Response from Kohler Product ExpertJul 24, 2021
            HomeDepotCustomer, this is Sarah with Kohler Co. I'm sorry to hear you aren't happy with the flushing noise level and cleanliness on your San Raphael toilet. We are here to help. While there is no way to reduce noise, we would like to ensure your toilet is adjusted properly to yield in a clean and successful flush. The chain connecting to the trip lever should be taut. If there is any slack, it should be tightened to remove the slack. The water level can also be checked. The water level in the tank should be at the water line which is marked on the inside back wall of the tank or on the flush valve. The refill tube can be checked as well. It should be connected at both ends connecting the fill valve to the center of the canister valve. If either end is disconnected, it should be pushed back into place. Additional details regarding the tube location can be found here: https://bit.ly/2UkB8a9. Please contact our Customer Service team at KohlerCustServ@kohler.com. We are glad to help! Sincerely, Sarah S. Kohler Customer Service
            • Verified Purchase
            The toilet needs to be flushed twice.
            The toilet needs to be flushed twice.
            by
            Response from Kohler Product ExpertJul 24, 2021
            Hi Ann, this is Sarah with Kohler Co. I'm sorry to hear your San Raphael toilet has to be flushed twice. This is nothing you should expect when choosing a Kohler toilet. I'd like to make a few suggestions to help improve the performance of your toilet. First, the refill tube can be checked within the tank. This tube should be connected at both ends connecting the fill valve to the center of the canister valve. If either end is disconnected, it should be pushed back into place. If this is disconnected, the bowl will not fill to the proper level after a flush. Additional details regarding the rim feed tube can be found here: https://bit.ly/2UkB8a9. The chain can also be checked. It should be connecting the trip lever (handle) to the flush canister. This chain should be taut. If there is any slack, it should be tightened to remove the slack. Lastly, the tank water level can be checked. The water level in the tank should be at the water line which is marked on the inside back wall of the tank or on the flush valve. Please email our customer service team at KohlerCustServ@kohler.com. We are glad to help! Sincerely, Sarah S. Kohler Customer Service
            • Verified Purchase
            1 found this review helpful
            Showing 1-10 of 110 reviews