Prime-Line Products B 695 Screen Door Roller Assembly, Thin, 1-InchSteel Ball BearingWheel/Housing, (2 per Pack)

This sliding patio screen door roller assembly is constructed of an inner and outer plastic housing with a steel wheel with steel ball bearings. This roller assembly has a center grooved (concave) edge and it is used on doors manufactured by Columbia doors. This item includes two (2) roller assemblies per package.

This screen door roller assembly is constructed from steel. It features a center grooved wheel and comes affixed to a thin nylon housing. This style roller assembly is used on Columbia screen doors.