Pulled out the old one. Put in the new one starting at the top middle and working my way down both sides.
I initially called Bosch and the lady told me to get different one that was only about $15, but when I looked carefully at the picture, it seemed thinner than it should be. The one recommended here is exactly the same as the one I am replacing, and though it was more expensive, about $40, I feel better about getting the right one. Super fast shipping.