Anderson Metals Brass Push-On Swivel Hose Fitting, Connector, 1/4" Barb x 5/16" Dual Seat Flare One piece construction Use with push-on type hose No hose clamp or ferrule needed Excellent vibration resistance Barb size is hose ID These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.