I am hoping you can help me. What were the old Tupperware containers with the button on top called? That is, what was the product line. I really appreciate any help you can render.
As far as I know, it was just called the push-button seal. It came apart so you could clean it from time to time. You can see them on EBay. Current pitchers are at http://sneakykitchen.com/kitchen/products/pitchers.htm