This TopLine 72-138 series is a medium-duty commercial and residential-grade sliding door hardware series. It is ideal for by-passing installations. Applications include doors between rooms, closet doors, cabinets, storage walls, and partitions. The heavy-duty aluminum. The double I-beam track is a jump-proof design; while the pivoting rocker arms ensure track-carrier contact. Precision ball-bearing wheels ensure smooth, quiet, and long-lasting performance. For 1 in. minimum doors weighing up to
