Dimensions for my smaller work sink are perfect. Well made. Single o-ring. I prefer double o-ring.
There was a small lip at the tip of the connector male end, that was too large for the faucet female I.D.
I had to sand that down, and then the fit was great. Not sure whether the issue was the "lip" on the T&S Swing Nozzle, or the I.D. of the existing faucet body. But either way I made it work, and the unit works very well.