This is a TOTO Washlet branch fitting, model TCA358. I purchased it for connecting a Washlet, but I bought the wrong model, so it's new and unused. This is an optional part specifically for the new Washlet KF/KM series released in October 2017, for use with piping that already has a branch fitting at the tip. Older models are supported by a different part number (TCA158). Water supply hose length: 785mm One of the included packing rings is missing.