12" x 4" 3-Way Stamped Register, Opposed Blade Damper, White - Shoemaker 845-0-12X4

Hello! Thank you for your inquiry about the Kohler 3948-UR-0 elongated toilet. Switching from a 2-bolt installation to a 3-bolt can vary depending on several factors, such as the specific toilet model and design. To get more detailed and accurate information regarding your question, we recommend that you reach out to a local professional plumber. This way, you can avoid issues like leaks and incorrect installations, ensuring the proper functionality of your toilet. You can also contact Kohler at 1-800-456-4537 between 8 AM and 5 PM CT Monday through Friday. We hope this helps! Thank you for visiting PlumbersStock! Have a great day!