Module Clamps IronRidge Aire Lock Mid 30mm-40mm Black, AE-MID-01-B1 Mfr. Part # AE-MID-01-B1 Range 30-40 mm
Module Clamps K2 Systems CrossRail Mid Clamp Set, 30-47mm, 13mm Hex, Dark, 4000602-H Mfr. Part # 4000602-H Range 30 - 47 mm