I know that A means driver side and B means passenger side. But I saw a product online that said 20OE. What is the OE?
Background: I'm looking for replacement wiper blades for a '99 Volkswagen Beetle Bug. Looking online, they say to use 21 inch wiper blades. However, when I went on Amazon and selected a certain product (Bosch), Amazon suggested it didn't fit my car. When I used their search page, I saw a bunch of 21 inch blades, and Bosch's was marked 20OE. What's that?