Delta RP6420 Wrench - Vandal Resistant Aerator

Hello! Thank you for your inquiry about the Delta RP6420 wrench. Unfortunately, we couldn't find any additional information regarding your question. However, this wrench is for use with the Delta 591T series faucets. For us to better assist you, please provide us with more details about your fixture, like the make and model number. This way, we will be able to provide you with accurate information about the part that you need. You can attach a photo if you like, and you can contact us at support@plumbersstock.com. We will be more than happy to assist you further. Thank you for visiting PlumbersStock! Have a great day!