If we are replacing an existing roman tub faucet, will the valve already in place work?A. Pam, It depends on which trim you get. If you have the valve number, and trim number you want I can call Pfister and ask if they will work together. Most of the time this is not the case, but we can find something that will work for you.
What is the flow rate of this filler?A. The Pfister RT6-5SR requires 1 of 3 valves. If we use the 0X6-440R, it has a flow rate of 13gpm.