Sometimes you just need a spare!Because we take every opportunity to innovate — materials, manufacturing processes, and design — we've recently made changes to the Cup, Cap, and Connector and are offering them as a complete set. *If you purchased your Chiller after September 2023, your Chiller will have new parts. *This item is final sale and cannot be returnedThe new design incorporates a few cool changes: The Connector is now compatible with the new Medela Pump In Style and similar new-style Medela pumps to allow for easy double-pumping. The Upper Cup now has a polished window that shows the ounce and milliliter markings more clearly. There are fewer ridges on the inside of the Connector to allow you to more easily capture every last drop of milk. The Upper Cup and Connector can now hold up to 7 ounces when assembled for double-pumping or as a baby bottle. The new patented Connector design and threading make it grippier and easier for us moms with small hands to unscrew. Comes with Lifetime Warranty. As always, please don't hesitate to reach out to us at info@cereschill.com if you have any questions about your Chiller, the new parts, or any other products that we offer.