Adaptaflex® Type SPLHC Liquid Tight Extreme Temperature Covered Conduit - Material Galvanized Steel Core W/Thermoplastic Rubber Cover - Color Black - Conduit Size NC20 (US Trade 1/2") - Out Dia 21.1mm - In Dia 15.9mm - Static Bend Radius 80mm - Reel Length 25m - IP66, IP67, IP68