Thank you for your question regarding which models of our hand held showers have the highest flow rate and I am happy to assist you today.
The maximum allowable flow rate for our shower heads and hand showers is 2.5 GPM.
To view all of our models which have a 2.5 GPM flow rate, please visit the link below and under the 'Max Flow Rate' tab, please select, '2.50 gpm, 9.5 L/min':
Also, under the 'Type' tab, you may select either 'Hand Showers' or 'Two-in-One Shower Heads' to refine your search further.
Please feel free to give us a call if we can assist you with anything else going forward at 800-345-3358.
Delta Faucet Company
Date published: 2018-03-09