I bought a Bosch refill as a spare, single blade, for my panaramic wiper, it was $19 and when the time came to replace the blade I discovered someone had switched my Bosch blade cage to a cheapie!

Must have been done in a parking lot somewhere!

I have wanted to replace the cage, or wiper, as the catalog describes it but oddly there are two different wipers for the Bosch panaramic!

One is Bosch #3.397.002.930 :612mm

The other is Bosch #3.397.012.091 :612mm

Price difference is about $3 between the two! Does anyone know what the difference is? Lenghth, width, fit, what????? BB