New Roller For Sliding doors

Hmm... based on the style of your roller and the fact that you're in Florida, I think you might have the discontinued Daryl patio door roller assembly. If possible, we will need to see the complete housing with dimensions. What you're showing here is just the inside portion of a complete roller unit. There should be an outer housing still installed in the door. Also, if you have the original patio door lock set, please send a photo of that. It could help us identify the door.