The Split-Lock+ is a split coupler molded from glass fiber reinforced nylon resin. It is heat- and UV-stabilized, fungus- and chemical-resistant, reusable (can be installed with cable inside), and provides an air-tight and water-tight seal without reducing internal diameter. Ideal for temporary coupling of conduits (slack-loop locations) and air-assisted jetting applications; assembled using a 7/16" nut driver. Part 20003907 is the 1" Split-Lock+ (nominal OD 1.315", duct OD working range 1.295" - 1.335", ship weight 5.5 lbs, packaging 10/case).