I just received the adaptor from Born Free, almost 2 weeks after I ordered them. I screwed them into the Medela flanges and they seem to fit ok. Next step is to test them out and see if they work well. I'll post my results Monday night.
The Born Free adaptor works well with the Medela flanges. There is this indentation for, I'm asssuming, your thumb to sit when you grip the adaptor while pumping. However, the position of the indentation is only when the adaptor is on the left hand, not the right! The only other thing I didn't like about them is that they are a bit long and you lose some milk since it sticks to the sides (every drop counts!).
I hope this helps those who are debating on buying them.
I just talked to a Born Free cs rep and she said the adaptor will work on the basic Medela pump, not the Advance models- of course we have the PIS Advance model.
I'm bumping this thread to see if anyone has figured out the Avent ISIS/born free issue?
Will the adapter work with the Ameda Purely yours pump?
The Medela bottles fit this pump so I would guess yes?