What is the GPM (Gallons per minute) or flow rate per faucet? Does this vary by model? If so, give the range.

All Kingston Brass faucets meet or exceed the CEC Title 20 law which requires that all faucets be limited to a flow rate of 1.2 GPM at 60 PSI for lavatory faucets and 1.8 GPM at 60 PSI for kitchen faucets. These flow rates are the same for all models of lavatory and kitchen faucets, respectively.