need to find out were this item is available
A quick learner from Los Angeles Ca. says:
May 7, 2016
Del Mar Eng 448-3 roller assembly
Paul from SWISCO responded:
May 10, 2016
Start with our 23-043 and let me know if this is a good match. Make sure to compare our pictures and measurements to your own part. If they do not match, please remove your roller from the door and show us a couple pictures of it by itself. Please also give us your dimensions.