Threaded barb adapter fittings allow you to connect soft sided tubing easily and securely. The barbed design generates maximum gripping and sealing power when combined with a hose clamp. Manufactured in nylon which has a resistance to a wide range of chemicals including most agricultural chemicals, ammonium compounds, detergents, diesel fuel, ethanol, gasoline, hexane, magnesium sulfate, most sodium compounds, trichloroethylene, and zinc sulfate. Features: Creates a reliable connection when used with a hose clamp Used to connect OD soft sided tubing Resistant to wide range of chemicals Specifications: Material: Nylon Barb Size: 5/8" ID Thread Size: 1/2" FNPT Color: Natural Note: Not intended for use with compressed gasses.