PVC Coated Conduit Coupling, 3 Inch/78 Metric Coupling Size, 3.03 Inch/76.98 Millimeters Minimum Length of Metal, 7.03 Inch/178.58 Millimeters Total Minimum Length Including Sleeve, Straight Threads, Pressure Sealing Sleeves, Blue Urethane Coating on Interior and Threads, Galvanized Rigid Steel, Light Blue