Thats interesting about the Ed30 being a different filter than the standard GTI as I've just put in a spare Green cotton filter that I had for my Leon TFSI (same engine as GTI) in my ED30. The p/n is P960137 and this is the same for the GTI, Ed30, FR, and Cupra.
It will do until I get the conversion piece for my Dbilas on the car!!!