Do you have a question about the Kohler C3-155 and is the answer not in the manual?
Highlights hybrid heater, adjustable settings, self-sanitizing wand, LED lighting, ergonomic controls, wash modes, and deodorization.
Specifies plastic construction and connection to toilet water supply line.
Lists inlet water supply hose, seat mounting bracket, and T-fitting.
Lists ASME, CSA, and UL standards applicable to the product.
Details available color options like White and Biscuit.
Specifies a dedicated GFCI-protected circuit, 120V, 15A, 60 Hz.
Provides details on seat shape, front type, mounting holes, and power cord length.
Includes water pressure requirements, location warnings, and extension cord guidelines.
The KOHLER C3®-155 Elongated Bidet Toilet Seat, model K-8298, is a sophisticated and feature-rich accessory designed to enhance personal hygiene and comfort in the bathroom. This bidet toilet seat integrates advanced technology with user-friendly design, offering a comprehensive cleansing experience.
The primary function of the C3®-155 bidet seat is to provide a thorough and gentle cleansing experience using warm water. It features both front and rear wash modes, allowing users to select the most appropriate cleansing option for their needs. The water temperature and pressure are adjustable, giving users complete control over their personal comfort. For an enhanced cleansing sensation, the bidet offers oscillating and pulsating spray options, which provide a dynamic and invigorating wash.
Beyond water cleansing, the C3®-155 incorporates a warm-air drying system with adjustable temperature settings. This feature eliminates the need for toilet paper, promoting a more hygienic and environmentally friendly bathroom routine. An automatic deodorization system, equipped with a carbon filter, actively works to neutralize odors, ensuring a fresh and pleasant bathroom environment after each use.
The bidet seat is powered by a hybrid heater, which ensures a continuous supply of consistently heated water. This eliminates the discomfort of cold water washes, providing a reliably warm and soothing experience every time.
The C3®-155 is designed with user comfort and convenience in mind. The heated seat offers five adjustable temperature settings, allowing users to customize their seating experience, particularly beneficial in colder climates. An LED lighting system illuminates the toilet bowl, serving as a subtle nightlight and enhancing safety during nighttime visits without the need to turn on bright overhead lights.
The control interface is thoughtfully designed for ease of use. An ergonomically designed side panel features larger control buttons, making it simple and intuitive to select and adjust settings such as wash mode, water temperature, water pressure, and dryer temperature.
For added hygiene, the bidet features a stainless steel wand that undergoes automatic UV-light self-sanitization. This ensures that the wand remains clean and germ-free, providing peace of mind with every use.
The seat itself is engineered for durability and stability. Grip-Tight bumpers securely hold the seat in place, preventing shifting or wobbling during use. The Quiet-Close™ functionality is a significant convenience feature, preventing the seat from slamming shut and ensuring a quiet and gentle closing motion.
Maintaining the KOHLER C3®-155 bidet seat is straightforward, thanks to several integrated features designed for easy cleaning and long-term hygiene. The Quick-Release™ functionality allows the seat to be easily detached from the toilet bowl. This makes it simple to access and clean both the seat and the toilet bowl thoroughly, ensuring a hygienic environment.
The automatic UV-light self-sanitization of the stainless steel wand is a key maintenance feature, as it actively cleans the wand after each use, reducing the need for manual cleaning and ensuring optimal hygiene. The carbon filter in the automatic deodorization system is designed to be effective in neutralizing odors, and while it will eventually require replacement, its presence significantly reduces the frequency of other cleaning tasks related to odor control.
The plastic construction of the bidet seat is chosen for its durability and ease of cleaning. Smooth surfaces and minimal crevices help prevent the accumulation of dirt and grime, making routine wiping down a simple task.
Installation is also designed to be user-friendly, with all necessary hoses and connections included, simplifying the setup process and ensuring a proper connection to the toilet water supply line. This attention to detail in both usage and maintenance aspects ensures that the C3®-155 bidet seat remains a convenient, hygienic, and enjoyable addition to any bathroom.
| Type | Bidet toilet seat |
|---|---|
| Power Source | Electric |
| Water Temperature Control | Yes |
| Heated Seat | Yes |
| Remote Control | Yes |
| Deodorizer | Yes |
| Bowl Shape | Elongated |
| Height | 19.5 inches |
| Water Consumption | 1.28 GPF |
| Flush Type | Gravity flush |
| Gallons Per Flush (GPF) | 1.28 |
| Rough-In Size | 12 inches |
| Seat Included | Yes |
| Height (inches) | 19.5 |
| Trapway Diameter | 2 inches |
| Installation | Floor-mounted |
| ADA Compliant | No |












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