I assumed you were talking about strips, but if the design/layout has changed, it helps to be able to see what you are talking about.
Without being able to see the changes to the strip design, there is no way to advise you.
It's kind of like saying I have a car, what is the part number for the replacement brake pads.
Without knowing the make, model, and year of the car, any answer is a shot in the dark...