IDEAL® SpliceLine® utilizes patented push-in technology, in a unique design, to provide a crimp-free, solderless butt splice quickly and easily. A great solution for today’s pre-fab operations, it's also perfect for lengthening short wires in tight spaces. It easily passes through ½” knockouts and the transparent polycarbonate allows for visual inspection, providing a secure connection every time.Crimp-free, solderless, push-in butt splice - covers the same range as three traditional butt splicesSlim design easily fits through 1/2" knockoutTransparent polycarbonate housing for visual inspection of connectionWire Range Capacity: Solid - 12 to 20 AWG; Stranded - 12 to 16 AWG (≤19 str.); Stranded Tin-Bonded - 14 to 18 AWG (≤19 str.) 30-1742 IN-LINE WIRE CONNECTOR MODEL 42 ORANG