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C3-230 Electric Bidet Seat for Elongated Toilets in Biscuit

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  • Quiet-Close lid closes slowly and quietly without slamming
  • Built-in side panel controls water temperature and spray
  • Heated seat and LED nightlight illuminates the bowl
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Product Overview

The C3 230 toilet seat brings you the freshness of personal cleansing in a slim, low-profile design made to fit most elongated toilets. This heated seat comes with an easy-to-use touchscreen remote that allows you to adjust and set all your personal preferences, from water temperature and pressure to seat temperature and air-drying. A built-in night-light provides illumination of the bowl, and the self-cleaning stainless steel wand uses UV light for automatic sanitizing.
  • In-line heater provides continuously heated water for consistent comfort
  • Front and rear wash modes provide warm water for cleansing
  • Adjustable water temperature and water pressure
  • Choose oscillating or pulsating spray
  • Touchscreen remote control with 2-programmable user presets
  • Stainless steel wand with UV-light self-sanitization
  • Heated seat with 5-temperature settings
  • LED lighting illuminates the bowl to serve as a night-light
  • Warm-air drying system with adjustable air speed and temperature
  • Carbon filter for odor control
  • Quiet-close lid closes slowly and quietly without slamming
  • Quick-release hinges allow seat to be unlatched from toilet for easy removal and convenient cleaning; no tools required
  • Grip-tight bumpers add stability and prevent shifting
  • Ergonomically designed for comfortable seating

Additional Resources

From the Manufacturer

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Bolt Spread (in.)
Power cord length (ft.)
Product Depth (in.)
20.4375 in
Product Height (in.)
6.0625 in
Product Width (in.)
17.125 in


Bidet Spray Type
Bowl/Seat Shape
Color Family
Adjustable Water Pressure,Heated,Posterior Wash,Warm Air Dryer
Charger Cord,Hardware
Product Weight (lb.)
15.4 lb
Seat Front Type
Seat Length (in.)
Seat Material

Warranty / Certifications

Manufacturer Warranty
Three-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

  • 4.4
    out of 105 reviews
  • 84%recommend this product
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Showing 1-10 of 105 reviews
C3-230 Elongated Bidet Seat
[This review was collected as part of a promotion.] I’m new to the bidet world, not having any prior experience with bidets. We hired a local plumber to replace our 30-year old contractors toilet that came with the house with a Koehler dual flush Wellworth elongated toilet and C3-230 matching bidet seat. Health issues having increased the frequency of my bathroom visits, I was hoping this would alleviate some of the discomfort I was experiencing. It’s a strange feeling when you first try the bidet, but you soon get used to it. It works flawlessly and has eliminated the problems I was encountering. I still use toilet paper, but a lot less. I don’t know how one goes paperless. The only problem we’ve had is regarding the blue nightlight. I like it. My wife has trouble sleeping with it on if we leave the bathroom door open. This is especially a problem when the LED light is flashing indicating the UV light is cleaning the wands. If I could decrease the LED’s light intensity and program the wand cleaning time to avoid this nighttime problem, it would be perfect.
  • Verified Purchase
  • Recommended
Great product!
In 2016 we remodeled our downstairs bathroom and installed this bidet. We absolutely love it and so do all of our guests. In fact, five friends stayed with us that year and whenever they use the bathroom, they would walk downstairs to use the one with the bidet. We just finished remodeling the two upstairs bathrooms and put this seat in all of them.
    • Recommended
    AMAZING! I have no idea why anyone would spend more for a bidet than what this thing has to offer...
    AMAZING! I have no idea why anyone would spend more for a bidet than what this thing has to offer. Comes with everything you need and the touch screen is a nice feature. Note that the actual seat though doesn't have black buttons as shown on this photo. It's actually white.
      • Recommended
      3 found this review helpful
      Overall I'm happy with this thing. The whole family loves it and I am a hero to my wife. Installa...
      Overall I'm happy with this thing. The whole family loves it and I am a hero to my wife. Installation was very easy and it is working just as I'd hoped. Only issues I have with the unit are: 1) The night-light is very bright. Not a big deal, but it is a bit of overkill. I read a review on Amazon about how this thing does some sort of cleaning cycle at night, and it blinks on and off. The guy was pretty upset as it made his bedroom like a disco in the middle of the night. I haven't seen that behavior at all so maybe that's been resolved. Supposedly it was a cleaning cycle of the wand. 2) Conversely, the display on the remote control is a little dim and I can't see the controls very well during the day. Again, not a big deal since there's a nearly identical set of controls right next to your right butt cheek that are easy to see.
      • Verified Purchase
      • Recommended
      8 found this review helpful
      Not my first bidet, but my first Kohler bidet
      Over the past few years, we had added a bidet seat to two of our bathrooms. This is our first Kohler made bidet seat, and boy is this an upgrade. On our other bidets, it was not uncommon for the warm water to run out during use, leaving you, shall we say 'shocked'. The Kohler employs a tankless water heater, for a constant and non ending supply of perfectly warmed water. We have never had this run out of warm water, not for want of trying. This is very important when choosing a bidet seat. I cannot stress this enough. The toilet has a 'night light' that illuminates the bowl in the dark, perfect for preventing children from 'missing' the bowl in the dark. The seat has an occupancy sensor, basically it knows if your bum in on there, and prevent operation when unoccupied. This is important if you have a cat that likes to jump up on the seat, or children that enjoy pushing buttons. As you sit down, a odor removing fan starts automatically. Whilst not being crass, this works very well, and completely eliminated any obnoxious bathroom smells. The seat itself is heated (perfect for cold winter nights), and it also soft closes, which means you are not going to wake someone up if you accidentally drop the seat closed in the middle of the night. The touchscreen remote, whilst very futuristic looking, is simple to use. Two user programmable settings can be stored in the remote, and adjustments are as simple as tapping the icon on the screen. You can also use the controls on the side of the seat if you prefer. The remote is magnetically secured to its cradle, where it also receives a charge from the batteries in the cradle. You can pick both oscillating or pulsating spray (or both together), water pressure, seat temperature, and air drying temperature. Everything is provided for quick and simply installation to any elongated toilet. The plumbing is accomplished using an adaptor that taps in to the existing feed to your toilets water tank (no soldering, or plumbing skills required), and a power plug that needs a GFCI power outlet. Who would have thought that going to the bathroom could be this much fun!
      • Recommended
      16 found this review helpful
      Goodbye Toilet Paper
      This is an unbelievable invention. Who would have known that you could change your ordinary toilet into a luxury household item. Installation could take anywhere from 15-20 minutes depending on skill level. All aspects of this bidet is customization. Pressure, heat, rhythm of the pulse. The touch screen is very easy to use. Instructions are great and easy. The whole new "process" take a little time to warm up to. But all in all and great product and a must have if you can afford it. The night light is a under rated feature.
      • Recommended
      19 found this review helpful
      The Kohler C3 230 Bidet Toilet Seat is pretty amazing. It's also pretty easy to install but for me required a bit more work. This seat is made for elongated toilets and the one I had was round. I replaced my toilet with a new Kohler elongated toilet and also installed an electrical outlet next to the toilet. Luckily I have a GFCI protected outlet on the opposite wall (next to the sink) which I tapped into to run the new outlet. Connecting the water line, mounting the seat, and mounting the remote took me 20 minutes at best. This seat doesn't just clean front and rear, there are tons of options you can select. There are six heat levels for the seat, the water, and the dryer. There are also six levels of water pressure and the extension of the wand. There is an oscillate and pulsate setting you can set if you like. Moments after you sit down the deodorizer kicks on along with the display on the remote control. The deodorizer works so well we hardly have a need to turn on our bathroom ventilation fan anymore. There are also two user preset buttons which allow you to enjoy all the settings you like with just the press of a button. I almost forgot about the night light. It's pretty cool but also useful for those late night trips to the bathroom where you don't want to disturb anyone by turning on bright lights. I can't really think of any cons but there are a couple of this to be aware of. First because of all the hardware this seat houses, the actual opening is a little smaller than regular toilet seats. Second, if you want to be totally dry, you are going need to sit with the dry on for a short while. We were apprehensive at first but my wife and I have used the Kohler C3 230 for about two weeks now and love it. Bidets are slowly catching on in the U.S. but have been common in other developed countries for decades. This bidet seat is another top of the line product from Kohler which I highly recommend.
      • Recommended
      6 found this review helpful
      Exotic Luxury
      The toilet seat was very easy to install. It took only about 10 minutes at the most. After installing, you cover the seat in plastic wrap and press down on it to test it (you don't want water shooting into your face). Functions: It has a deodorizer fan that comes on when you sit down. You can adjust water temperature, pressure, pulse, and oscillation. You can also adjust air temperature and speed for the fan. It has an automatic led nightlight. Pros: Works great and cleans well. Helps prevent irritation from over-wiping. Fun conversation piece. Cons: It takes a while for the dryer to dry you. Front and back nozzle adjustment is not quite different. Also, due to the price, it's not for everyone.
      • Recommended
      18 found this review helpful
      Fantastic features
      I bought this about a month ago and it and my wife loves it. The features of the seat are amazing.
      • Verified Purchase
      • Recommended
      Futuristic toilet seat: nice set of features and functionality. The...
      Futuristic toilet seat: nice set of features and functionality. The only negative so far is that the toilet seat is made of lightweight plastic, which has some flex to it. I’d like to see a more solid top for the money. I’ve worked with engineers in the past and this is a common design flaw they fall into- unless the product manager sticks to a certain quality vision- engineers will try to optimize around a parameter like making the toilet top lightweight or minimal use of material-as if they will win some award for this optimization. You end up with a flimsy product. In this case, it keeps the toilet from being truly luxury feel ( should have more solidity and heft) but it still works so ok. The handheld remote is convenient but could be brighter.
      • Verified Purchase
      Showing 1-10 of 105 reviews