Will a Fractal R4 Window fit a Fractal R2 case?

[Thesnipergecko]

As subject, can't find anywhere on the net to get a window side panel for my R2, but they are plentiful for the R4.

Does anyone know if the R4 will fit the R2?

 

[Phil2008]

I was going to give you the site that I got mine from a few weeks ago,, but the dont stock them now soz

Edit: mines a R3 anyway...... Doh

 

[Kavalree]

May I ninja and ask if the R4 window will fit an R3 case?