TOTO WASHLET K300 w/ EWATER+ SW3036R#01, SW3036R#12


Color: Cotton White
Size: Elongated
In stock
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The TOTO K300 Washlet (SW3036R) is TOTO's updated premium bidet toilet seat. With a slim design, the K300 SW3036R washlet is available in Elongated size only and includes the typical premium bidet seat features like tankless water heating, warm air dryer, deodorizer, heated seat and a self cleaning nozzle.  Compared with the previous SW3036 model, this updated K300 SW3036R has the addition of TOTO's eWater+ feature.

California residents see Prop 65 WARNINGS


SW3036R#01 Washlet K300 Cotton White

SW3036R#12 Washlet K300 Sedona Beige


With the K300 washlet, TOTO is trying its hand in the mid-range, online bidet seat market.  Compared to the lower end C200 and C100 models, the K300 has a much slimmer and lower profile design.  The C series washlets are very bulky, around 8"-9" tall in the rear.  While they function ok, the bulkiness of that model range is a big turn off to many users.  The TOTO K300 SW3036R bidet is just 5.25" tall in the very rear, so it's design is much more modern and in line with other premium bidet seats on the market.  The other big improvement the K300 has is the tankless water heating system.  This makes it much more energy efficient and provides unlimited warm water for maximum comfort. The round size was also eliminated in the K300 washlet series.

So what separates the K300 SW3036 from TOTO's highest end models like the S500e and S550e?  The two major differences are the absense of TOTO's unique eWater+ system, as well as the slightly bulkier design.  TOTOs highest end models are about 4.5" tall in the rear, so they are the lowest profile bidet seats on the market.  While the K300's 5.25" design isn't that much taller, it's closer in line with other brands on the market like Bio Bidet, Brondell and Alpha. The K300 washlet also does not have an automatic lid/seat or an LED nightlight.

Self-Cleaning Wand with EWATER+

After each flush, EWATER+ mists on the wand and toilet bowl, reducing the need for harsh cleaning chemicals.


Features and Functions

Gentle Aerated, Warm Water, Dual Action Cleansing Spray
The main function of the WASHLET w/ soft and hard sprays.

Instant Water Heating System
For continuous warm water and energy saving.

Convenient Slim Wireless Remote Control
Wall mountable with illuminated buttons.

Oscillating or Pulsating Functions
For maximum comfort, take advantage of the oscillating or pulsating spray patterns.

Hands Free Dryer
Warm air drying with adjustable temperature (3 levels).

Rear Spray (Soft)
A soft, comfortable spray.

Rear Cleanse (Hard)
Warm water spray with adjustable water temperature and pressure.

Front Cleanse 
Warm water spray with adjustable water temperature and pressure.

Heated Seat
Comforting, warm seat.

Self-cleaning Wand
Wand is cleaned before and after every use.

Automatic Air Deodorizer
Air is filtered to help remove odor.

Water spray that wets the bowl before use.

User Presets
Save settings for 2 users.


Power Rating  AC 120 V 60 Hz
Power Consumption  1274 W
Max Power Consumption  1430 W
Power Cord Length  3.94 ft (1.2 m)
Spray Volume Rear Cleansing:
0.07 – 0.11 gal/min
Rear Soft Cleansing:
0.07 – 0.11 gal/min
Front Cleansing:
0.08 – 0.11 gal/min
Spray Features Adjustable Surface Temp:
86 – 104 ºF (30 – 40 ºC)
Safety Device:
Temperature Fuse
Warm Air Dryer Features Adjustable Air Temp:
95 – 140 ºF (35 – 60 ºC)
Airflow Volume:
10.24 ft3/min (0.29 m3/min)
Safety Device:
Temperature Fuse
Heated Seat Features Adjustable Surface Temp:
82 – 97 ºF (28 – 36 ºC)
Safety Device:
Temperature Fuse
Water Supply Pressure Minimum:
7.25 PSI (Dynamic)
108.75 PSI (Static)
Ambient Temp.  32 – 104 ºF (0 – 40 ºC)
Warranty  One Year Limited Warranty
Shipping Weight  14.5 lbs
Shipping Dimensions  23-1/2"L x 18-1/2"W x 7"H

Fitment Guide 

washlet fitment


Download Product Sheets

SW3036R Spec Sheet

Users Manual

SW3036R Users Manual

The TOTO K300 Washlet from comes in a 12 Month Manufacturer's Warranty (from date of purchase).

Customer Reviews

Based on 18 reviews
Very pleased

I highly recommend the K300. It works great and is easy to install. There are multiple nozzle positions and pressure settings to choose from as well as water and seat heating settings. There is a oscillating function and a soft spray too. We’re both very happy we made this purchase.
BidetKing is great to work with. I called to verify the fit on our Kohler toilet. The representative was extremely patient and helpful.
Well worth the investment.

John Wacker

TOTO WASHLET K300 w/ EWATER+ SW3036R#01, SW3036R#12

David Hill
Love it!

We absolutely love this bidet. Warm seat, warm water, good pressure and really easy to install. Highly recommend!

Steven Meineke
Quality product

After comparing the features and reviews of several models from different manufacturers, we decided on Toto based mainly on wanting to buy from a manufacturer with a stellar reputation and having had prior positive experiences as owners of Toto toilets. Install was easy. Love the remote with setting for two users. Stays clean and we only use the tiniest amounts of toilet paper now, and don’t need to spray air freshener any more. Shipping was fast.

Great easy to install washlet.

Really love this washlet, the features are amazing. Good pressure, on demand hot water, seat heater, dryer, everything you want. Can't recommend it enough.

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