It took me 2 days to install this faucet because the supply lines would not screw on. It took 6 different types of supply lines until I found the ones that work.   I contacted Moen and they did get back to me with some advice, which was good, however the supply lines they suggested were difficult to find.   I was hoping for a quick project but it took so much more time running back and forth trying to find the right supply lines.