Sliding Glass Patio Door 1-1/2" Tandem Steel Ball Bearing Roller With 3/4" Wide Housing for Several Manufacturers

The adjustable steel housing assembly on this Patio Door Roller is 3/4 inch (19.0 millimeter) wide and 1-1/4 inch (31.8 millimeter) high. The two steel ball bearing rollers are 1-1/2 inch (38.1 millimeter) in diameter. This patio door roller is popular with several patio door manufacturers.