Intertherm Pre Charged Quick Connect Line Set 3/4in x 3/8in x 40ft. Pre-Charged Quick Connect Line Set - 3/4" X 3/8" X 40' Features of Intertherm Pre Charged Quick Connect Line Set - 3/4in x 3/8in x 40' Dimensions: 3/4X3/8X40' Insulated line Pre-charged quick connect Made with quality/durable materials Package Contents: Intertherm Pre Charged Quick Connect Line Set - 3/4in x 3/8in x 40' Intertherm 1007401: Pre Charged Quick Connect Line Set 3/4in x 3/8in x 40ft