Hi, Kim Larson 42!
Thank you for your question. The flow rate for this Delta Tub Spout - Non-Diverter RP48333RB depends on the valve trim kit that you install this with. To better assist you with this inquiry, please contact our Delta Customer Service line at (800)345-3358. We are available Monday-Friday, 7am-7pm, CST and Saturday, 8am-5pm, CST. You may also email at customerservice@deltafaucet.com.
Best Regards,
Rosanna
Answered by: DeltaFaucet11
Date published: 2018-08-20