Capitol Door Roller Assembly, 1-1/8" Concave BB

This roller assembly is designed to replace rollers in sliding patio glass doors manufactured by Capitol. Features an adjustable housing with a steel concave ball-bearing wheel, 1-1/8" diameter. The typical sliding door uses two patio door rollers, one on each bottom corner of the door. We recommend replacing both roller assemblies at the same time to prevent extra wear-and-tear to one new roller, which will have to work twice as hard when paired with an old roller.