WASHLET K300 - Elongated
Introducing the WASHLET K300 - Elongated, an advanced electronic bidet seat that elevates your bathroom experience with luxury and eco-friendliness. It features a warm water spray with customizable temperature and volume settings for a personalized cleanse, and an instant heating system ensures a continuous supply of warm water. The model includes a warm air dryer with three temperature options and an automatic air deodorizer for added freshness. With an intuitive wireless remote, two user settings, and a self-cleaning wand using EWATER+® for optimal hygiene, the WASHLET K300 is easy to install and maintain. This bidet seat not only transforms your cleansing routine but also complements any modern bathroom.
Class: Value | Type: Seat |
Cleansing Performance: 3/5 | Design: 4/5 |
Features: 5/5 | Overall Score: 70 |
Design and Aesthetic Appeal
Performance and Features
Key Features
Adjustable Settings
Adjustable Water Pressure
Automatic Lid and Seat
Customizable Nozzle Positions
Deodorizing Technology
Heated Seat
Self-Cleaning Nozzles
Smart Remote Control
Spray Modes
Air Dryer
DIY Install
Ambient Temp.
Oscillating Wash
Dual Water Spray System
Massage Feature
Night Light
Power Saving Mode
Seat Sensor
Slow Close
Stainless Steel Nozzle
UV Sterilization
Hybrid Warm Water
Feminine Wash
Enema Function
Technical Specifications
Feature | Description |
---|---|
Installation Notes | Docking station easy to install and clean |
Max Power | 1430 W |
Power Consumption | 1274 W |
Power Cord Length | 3.94 ft (1.2 m) |
Power Rating | AC 120 V 60 Hz |
SKU(s) | SW3036R |
Seat Dimensions | 1.74 ft (531 mm) width x 0.43 ft (131 mm) height x 1.26 ft (384 mm) length |
Shipping Dimensions | 23-1/2"L x 18-1/2"W x 7"H |
Shipping Weight | 14.5 lbs |
Warranty | One Year Limited Warranty |
Water Certifications and Compliance | California Proposition 65, IAPMO(cUPC), State of Massachusetts, City of Los Angeles, others |
Water Supply Pressure | 7.25 PSI (dynamic) - 108.75 PSI (static) |
Weight Specifications | 14.5 lbs |
Install and Maintain Manuals
Buy and Price
User Reviews

Great options, reasonable price luxury model
This Toto washlet is my second purchase. The first one I acquired approximately 10 years ago has unfortunately ceased to function due to the lack of Tosh wash, it died. I am delighted that Amazon offers a wide range of Toto washlets. I identified the model that best suited my needs, which was an upgrade from my previous model. I initially purchased it for $1,800, which is remarkable considering the significant price drop over the past decade. At that time, the dema... This Toto washlet is my second purchase. The first one I acquired approximately 10 years ago has unfortunately ceased to function due to the lack of Tosh wash, it died. I am delighted that Amazon offers a wide range of Toto washlets. I identified the model that best suited my needs, which was an upgrade from my previous model. I initially purchased it for $1,800, which is remarkable considering the significant price drop over the past decade. At that time, the demand for these products was low, resulting in their higher cost. The upgraded model is now priced at $550. I opted for the less expensive model because the premium model only offered automatic lid closure and a specialized spray for women, and automatic bowl cleaning which I deemed unnecessary, 500 bucks less. This model is exceptional, and you will undoubtedly be satisfied with your purchase. Once you own one, you will find yourself unable to live without it. I am pleased that the price is now reasonable and the installation process is straightforward. I completed the installation within approximately an hour, drawing from my previous experience with the same model type. You will never be disappointed with Toto. All of my toilets are Toto, and I am extremely satisfied with my purchases. Ready for booty wash.

[Incentivized Review] The seat was incredibly easy to install, I replaced the old one in about 30 minutes. All of the r...
The seat was incredibly easy to install, I replaced the old one in about 30 minutes. All of the required hardware is included, all you need is a screwdriver and (maybe) an adjustable wrench (don’t overtighten). It is important to note that you do need to have an electrical outlet nearby. I installed a new one a few weeks ago knowing that I was getting this. The seat itself is comfortable, but you do lose some sitting room and the opening is smaller compared to the regular toilet seat it replace... The seat was incredibly easy to install, I replaced the old one in about 30 minutes. All of the required hardware is included, all you need is a screwdriver and (maybe) an adjustable wrench (don’t overtighten). It is important to note that you do need to have an electrical outlet nearby. I installed a new one a few weeks ago knowing that I was getting this. The seat itself is comfortable, but you do lose some sitting room and the opening is smaller compared to the regular toilet seat it replaced, because the back part of the seat that houses the electronics and such take up some of the space. It is also simple to use, there are two buttons on left that toggle through low, medium and off settings for the heated seat temperature and water temperature. The dial on the right controls the water flow and ‘aim’ (forwards for front, back for rear and center for ‘off’). The flow isn’t overpowering, but enough to get you clean, and the water warms almost instantly. The sprayer itself is contained when not it use and has a self cleaning system, while the exterior doesn’t appear to be any more difficult to clean than any other seat. It also has a light that automatically illuminates for nighttime visits. My only complaint would be that the cord could be a little longer. I was able to reach mine on the opposite side, but an extra foot or two would’ve been nice so I could tuck it away better. In summary, it may seem a little expensive at first, but when you consider what you pay for a night or two at a fancy hotel compared to something like this that will last you for years of use, I think it is totally worth it. It will also save you money on toilet paper (although you’ll still need some to dry off) and have less impact on your pipes and the environment. It will get you cleaner and the seat heater and warm water are an added comfort. Go ahead and get one…your posterior will thank you later.