Prime-Line D 1791 Roller Assembly, 1-1/8 in Dia Roller, 5/16 in W Roller, Steel, 2-Roller, Plain Back Mounting. Steel ball bearing tandem roller assembly, adjustable steel housing. Used by several door manufacturers. 3/4 in W, 3-1/8 in L, 1 in H. Concave roller edge type. 2 tandem wheels in roller assembly.
| Type | : | Patio Door Assemblies |
| Material | : | Steel |
| Finish | : | Gold |
| Suitable for | : | Sliding Patio Glass Doors |
| Dimensions | : | 3-1/8 in L x 3/4 in W x 1 in H |
| Bearing Type | : | Ball |
| Mounting Type | : | Plain Back |
| Number of Rollers | : | 2 |
| Roller Diameter | : | 1-1/8 in |
| Roller Edge Type | : | Concave |
| Roller Width | : | 5/16 in |
| Wheel Type | : | Tandem |