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 10m - IP66, IP67, IP68