Hi Divertthermvol seeker,
Thank you for your question. This valve is not designed to be used with a tub spout. However, you may connect a non-diverter tub spout to one of the diverter ports as a temperature tester. Since the flow rate from the spout would be lower than a standard installation, we do not recommended to use it as a tub filler. The flow rate at 80 PSI is between 5.6 gpm and 7.4 gpm depending on the series of trim/cartridge used.
Date published: 2018-04-16