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Good day! Thank you for your interest in the TOTO WASHLET SW2043R#01 bowl seat. Yes, this toilet seat will fit on the MS854114SG#01 one-piece toilet. The remote also requires two AA batteries. Please refer to the specification sheet for more details about this bowl seat. To purchase, just click the 'Add to Cart' button, fill in the required fields, and we'll take care of the rest. Thank you for choosing PlumbersStock! Have a great day!

Is this seat compatible with the Kohler one piece Santa Rosa? Also, I am concerned with reviews about flimsy plastic pieces with installation. What if they break?

Sorry, I was trying to ask a question!

Aloha! Thank you for posting a query about the TOTO SW2043R washlet seat. Unfortunately, we can't seem to find any answer with regards to your query. For us to assist you better, please provide the complete make and model number of your TOTO product. If you have the complete make and model number ready, please feel free to contact one of our knowledgeable customer service representatives @ 435-868-4020 between 8:00 am and 7:00 pm MST or through e-mail at support@plumbersstock.com. They will be happy to assist you further. Thank you for contacting PlumbersStock! Have a great day!

Hey, good day! Thank you for taking an interest in the TOTO SW2043R#01 WASHLET. Yes, this C200 has a water tank to store warm water. To order this round bowl WASHLET seat, just click "add to cart" and fill in the required information. Thank you for choosing PlumbersStock! Happy shopping!

Good day! Thank you for inquiring about the TOTO SW2043R#01 Washlet. The THU9476 deodorizer cartridge is what you need for your C200 washlet. To order, just follow the link we provided, click the 'Add to Cart' button, and fill in the required fields. Thank you for choosing PlumbersStock! Have a great day!