You need to do a browser search then guy, I did this just to see if any came up...I got more hits than I thought I would, and too many to actually post here so here is the link with the different vendors that have them.
You can also do your own Google search too to see if even more results show up...All I had to do was enter...G2 reed valve petals...If doesn't get much simpler than that...lol.