Thank you for your question, BRIAN! We do not recommend using a diverter valve with a tub spout as it will decrease the pressure and amount of water available to fill a tub. For tub spout installations, we recommend using a Univeral Multichoice rough in valve like the R10000-UNBX. This valve will allow you to install a diverting tub spout on the bottom port as well as connect to a diverter trim on the top port.
Best regards, Edward
Date published: 2018-07-08