It's an easy DIY project. Even I have done it (twice)
See what brand you have. It's usually American Standard or InSinkErator. And find the same brand at the local hardware store (or Costco) buy it and follow the instructions.
This message has been modified
Originally posted on Sep 12, 2024 at 9:19:00pm
Message modified by HuskerFan2 on Sep 12, 2024 at 9:22:20pm