The Dura Faucet (DF-SA150-CP) Single Lever RV Shower Faucet Valve Diverter is a premium grade fixture that us light weight and lead free certified. It can fit all standard shower hoses easily and has a 2-hole 4" installation process. It already comes with the nuts and washer needed for the installation. The faucet features a flow rate of 2.2 gpm @ 60 psi, 8.3 L/min @ 414 kPa and comes with a lifetime warranty.