TOTO Nozzle Flow Adjustment Unit TCH957S New, Unused Item

TOTO Washlet Nozzle Flow Adjustment Unit TCH957S.
I purchased this by mistake and have opened it, so I'm selling it at a discount.

The item has been opened for inspection but is unused.
It has never been installed, so its operation has not been confirmed.

Purchase price was approximately ￥9,800.

I do not know the compatible models, so please contact the manufacturer for information.

Please purchase only if you understand that the item has been opened and its operation has not been confirmed.
It will be shipped in its original outer box, and for added protection, I will place it in a recycled cardboard box.