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Kohler C3®-155 Elongated Bidet Toilet Seat

Kohler C3®-155 Elongated Bidet Toilet Seat

Regular price $499.46 USD
Regular price $639.99 USD Sale price $499.46 USD
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Shipping calculated at checkout.

Shipping & Returns

We offer free shipping on all domestic US orders.

Select in stock items qualify for same day shipment (click here).

Please allow 7 days to recieve your order.

All bidet toilet seats are returnable within 30 days following order date (click here).

Due to hygiene compliance, we cannot accept returns on Bidet Toilet Combinations (click here).

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Kohler C3-155 Elongated Bidet Toilet Seat

Bring the refreshing convenience of personal cleansing to your existing toilet. With a slim, low-profile design that fits most elongated toilets, the C3®-155 bidet toilet seat uses soothing heated water to provide a higher level of cleansing and hygiene. A built-in side panel is ergonomically designed for easy control of water temperature and spray, while the heated seat keeps you comfortable. A built-in night-light illuminates the bowl, and the self-cleaning stainless steel wand uses UV light for automatic cleaning.

KOHLER UV-light technology automatically cleans the bidet wand every 24 hours, reducing bacteria by 99.9%.*

*Tested against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa. 


  • Hybrid heater provides continuously heated water for consistent comfort.
  • Heated seat with five adjustable temperature settings.
  • Self-cleaning function uses UV light to automatically clean the wand surfaces.
  • LED lighting illuminates the bowl to serve as a nightlight.
  • Ergonomically designed side panel offers larger control buttons for comfortable control.
  • Front and rear wash modes provide warm water for cleansing.
  • Adjustable water temperature and water pressure.
  • Choose oscillating or pulsating spray.
  • Warm-air drying system with adjustable temperature settings.
  • Automatic deodorization with carbon filter for odor control.
  • Toilet seats are not returnable to Kohler Co. if opened or outside of original packaging.
  • Quiet-Close™ functionality to prevent seat from slamming.
  • Grip-Tight bumpers hold seat firmly in place.
  • Quick-Release™ functionality allows seat to be removed easily from toilet for convenient cleaning.
  • Ergonomically designed for comfortable seating.


  • Plastic construction.


  • Requires connection to toilet water supply line. All hoses and connections are included.


Fits most elongated toilets.

Requires connection to toilet water supply line. All hoses and connections are included.

Specification Sheet

Homeowners Guide without Service Parts

Installation Guide without Service Parts

Easy 45 Day Returns or Exchanges

 The Kohler C3-155 comes with a One Year Limited Manufacturers Warranty

Notice to California Customers

WARNING: Cancer and Reproductive Harm –

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