BTW, there is a difference as one is deeper thant the other. Believe there are numbers on the back that I recall differentiated them but they are slightly different shaped front to back. I vaguely remember that they did NOT fit correct when I had the wrong ones in the wrong spot....just an FYI. I may go look in my spare parts to compare and check being I will be assembling soon and I will have to pay attention to this minor facet of assemblage.