How to Refill Aerotwin Wipers

1. Insert a small flat tip screwdriver into the end of the wiper blade assembly between the rubber blade and the end cap on one end of the wiper blade assembly.
2. Work the screwdriver back and forth to pull or slide the end cap off the end of the wiper blade assembly.
3. Pry up on the locking tab underneath the end cap, once it is completely removed, with a screwdriver. This will free the rubber blade from the assembly.
4. Slide the rubber blade out of the assembly and slide the new rubber blade into the blade assembly.
5. Close the locking tab and replace the end cap.