Is the correct Bosch Part # H 9DC0 ?

I see 2 different part numbers.

1. H 9DC - I think this one is Bosch Super
2. H9DC0- I think this one is the OEM

Can someone please verify this?

Also, my cost on the H9DC0 is $25 Canadian or $19 US including taxes for all 6.

Is that price fair?