Retrofit Seats LLC
Toilet Seat Adapter - Fits Case Toilets and Bemis Stay-Tite Seats
Toilet Seat Adapter - Fits Case Toilets and Bemis Stay-Tite Seats
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Upgrade your vintage Case toilet with this 3D-printed adapter bracket made from durable PETG. Designed for Case models with 7-inch hinge spacing and front-mounted bolts (including Case 1000, 1100, and 3000), it allows you to install modern Bemis and other Stay-Tite toilet seats with ease.
No need to search for expensive or discontinued Case toilet seats—this practical solution restores function while preserving the look of your classic fixture. Each kit includes stainless steel hardware and raised bumpers for a stable, level fit.
Order it printed in a color-matched PETG—close to original tones but not exact—or choose a neutral base to paint it yourself. Custom color options available.
For more information, check our About Page or view Installation Instructions.
Case® and Bemis® are trademarks of their respective owners. Retrofit Seats LLC is not affiliated with or endorsed by these companies.
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We recently purchased 2 adapters for our Case 1960s wall hung toilets.We are overjoyed to have found these adapters that allow toilet seats to attach. ( we used the Bemis brand toilet seats). After searching for years for seats that fit our vintage toilets, we are so pleased these adapters have been created. They are well made and easily attach. Thank you for creating this product!
The product itself is great! The color however, isn't a great match for my toilet, so I haven't installed it yet. I plan to take the tank cover in and have an acrylic paint color matched so I can paint the adapter, then finish with clear coat. This company has great Communication with the customer, which I really appreciate. And they do a great job with customer satisfaction. I highly recommend them.
Hello, I am glad to hear you like the adapter and we appreciate your business! Please feel free to shoot us an email with photographs of the match and we will see if there is anything we can do for you on our end. The color matches are not perfect, but we are always doing our best to improve.
If you proceed with painting, please be sure to tape off the mounting post, and lightly sand the adapter with 400-600 grit sandpaper. We also recommend that you wear safety glasses and the proper mask!
Thank you for taking the time to leave a review and please don't hesitate to reach out if you have any questions!
The toilet seat adapter fit perfectly and allowed for a new toilet seat on an old Case toilet from the early 1950's. When we purchased our home which is from 1790 and the bathrooms were updated in the 1950's we never knew modern toilet seats might not work on an old toilet. After some Google searching I found this company. Patrick is SUPER helpful and we sorted this out. The adapter is very nicely made and heavy duty. Thank you very much!
Thank you for your business, and for leaving your feedback!
We hope the adapter serves you well for years to come.
The adapter works great.At least I can get seat that’s functional but still very limited in styles and especially colors. The adapter seems a little pricey though.
Very good design. A little overpriced.
Thank you so much for the 4-star review and your feedback! We're thrilled you appreciate the design.
We understand your comment on the price, and we appreciate the opportunity to share a bit about our process. Each seat adapter is manufactured individually and then hand-finished, a careful process that takes several hours per unit to ensure a perfect fit.
Our main goal is to provide a reliable and affordable solution to keep these wonderful vintage Case toilets in service. With our adapter, customers can get a brand-new, modern seat solution for well under $100, saving them the significant cost and hassle of replacing the entire fixture or tracking down a pricey original seat.
We're always exploring ways to become more efficient, and your feedback is a valuable part of that. Thanks again for your support of our small business, and we hope the adapter serves you well for years to come!