Bonneville Patio Door Roller

Hello! This roller appears to be a match for our 84-096. Note that its bottom corner isn't closed.

Another possibility is the 84-108. This is the same design as the 84-096, but with a closed corner. Either one may be what you need, but look them over and see what you think. 

Dimensions for 84-096

Closeup of the 84-096 screen door corner attachment point

Alternate image for 84-108

Closeup of the 84-108 screen door corner attachment point