Adaptaflex® Type SPLHC Liquid Tight Extreme Temperature Covered Conduit - Material Galvanized Steel Core W/Thermoplastic Rubber Cover - Color Black - Conduit Size NC16 (US Trade 3/8 ) - Out Dia 17.8mm - In Dia 12.5mm - Static Bend Radius 50mm - Reel Length 50m - IP66 IP67 IP68