Forney 86109 Oxygen Acetylene Hose, R-Grade, 3/16-Inch-by-50-Feet Suitable for use with oxygen acetylene only 3/16-Inch by 20 foot red hose for acetylene and green for oxygen Use with acetylene fuel gas only Resists kinks, heat, weather and solvents Bleed hoses when not in use for at least 30 minutes