Uniweld H13 Acetylene Single Hose, 25-Feet X 3/16-Inch Proudly Made In USA Acetylene Single Hose 25 Ft. X 3/16 Inch I.D A Fitting Connection (A=3/8 Inch - 24) Flexible Grade R single hose is color coded Red for Acetylene Fuel gas with left hand thread fittings to prevent improper hose connection 8-sided crimp ferrules capable of withstanding a maximum W.P. of 200 psi