PVC Coated Conduit Coupling, 5 Inch/129 Metric Coupling Size, 3.37 Inch/85.69 Millimeters Minimum Length of Metal, 7.37 Inch/187.29 Millimeters Total Minimum Length Including Sleeve, Straight Threads, Pressure Sealing Sleeves, Blue Urethane Coating on Interior and Threads, Galvanized Rigid Steel, Gray