3/8" Inside Diameter x 18.6mm Outside Diameter, Breathing Air Hose, 20 Metre Coils, EN 14593-1-1 2:2005 & EN 14594:2005 Hose, Length 20 Metres, Bend Radius 70mm, SBR, Black, Working Temperature -40┬░C to +80┬░C, Maximum Working Pressure 12 bar, Jaymac