Screen door roller, slides into frame extrusion from the end
I don't immediately recognize this roller, but we will do our best to try to track it down. Please give us a little more time and I'll try to get back to you ASAP.
Thank you for your patience during this busy season. We carry the 84-063 roller used on Miller screen doors. This roller has a housing that is made to slide into a groove in the bottom screen door rail. It is not the same as your original, but take a look to see if it will slide into your screen door rail at all.
Another thought would be the 84-095 roller, used in Moss screen doors. Maybe you can run a screen though the hole at the top of the housing into that groove in the bottom rail of the screen door that your roller slides into.
I can't guarantee that either will work, but these are our best and only options.